Intel Computer Hardware 80302 User Manual

®
Intel 80303 and 80302 I/O  
Processors  
Specification Update  
May 6, 2003  
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®
Notice: The Intel 80303 and Intel 80302 I/O Processors processor may contain design defects  
or errors known as errata. Characterized errata that may cause the product’s behavior to deviate  
from pubished specifications are documented in this specification update.  
Order Number: 273355-010  
 
This Page Intentionally Left Blank  
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4
Intel 80303 and 80302 I/O Processors Specification Update  
 
Revision History  
Revision History  
sc  
Date  
Version  
Description  
Added Errata 2.  
05/01/03  
010  
Revised Specification Clarifications 4, 7 and 8.  
Reworded Specification Clarification 4.  
Added Specification Clarifications 7 and 8.  
08/27/02  
11/15/01  
08/22/01  
009  
008  
007  
Added Specification Clarifications 5 and 6.  
Added Document Changes 32 and 33.  
Added Specification Clarification 4.  
Added Document Changes 30 and 31.  
Added Document Changes 25 through 29.  
04/24/01  
04/02/01  
006  
005  
Revised Device ID Registers “A-2” Revision ID Registers data.  
Added Note to Device ID Registers.  
Added Specification Clarification 3.  
Added Errata 1.  
Added Specification Change 1.  
03/22/01  
004  
Added Specification Clarifications 1 and 2.  
Added Document Changes 13 through 24.  
Updated Die Details Table and Device ID Registers for A-2 step.  
02/23/01  
08/2000  
003  
002  
Die Details and Device ID Registers tables, corrected stepping A-0 to A-1.  
Updated Die Details Table.  
Revised Device ID Registers Table.  
Added Document Changes 1 through 12.  
This is the new Specification Update document. It contains all identified errata published  
prior to this date.  
06/2000  
001  
®
Intel 80303 and 80302 I/O Processors Specification Update  
5
 
 
Preface  
Preface  
This document is an update to the specifications contained in the Affected Documents/Related  
Documents table below. This document is a compilation of device and documentation errata,  
specification clarifications and changes. It is intended for hardware system manufacturers and  
software developers of applications, operating systems, or tools.  
Information types defined in Nomenclature are consolidated into the specification update and are  
no longer published in other documents.  
This document may also contain information that was not previously published.  
Affected Documents/Related Documents  
Title  
Intel® 80303 I/O Processor Developer’s Manual  
Intel® 80303 I/O Processor Data Sheet  
Order #  
273353  
273358  
273308  
Intel® 80303 I/O Processor Design Guide  
Nomenclature  
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®
Errata are design defects or errors. These may cause the Intel 80303 and Intel 80302 I/O  
Processors behavior to deviate from published specifications. Hardware and software designed to  
be used with any given stepping must assume that all errata documented for that stepping are  
present on all devices.  
Specification Changes are modifications to the current published specifications. These changes  
will be incorporated in any new release of the specification.  
Specification Clarifications describe a specification in greater detail or further highlight a  
specification’s impact to a complex design situation. These clarifications will be incorporated in  
any new release of the specification.  
Documentation Changes include typos, errors, or omissions from the current published  
specifications. These will be incorporated in any new release of the specification.  
Note: Errata remain in the specification update throughout the product’s lifecycle, or until a particular  
stepping is no longer commercially available. Under these circumstances, errata removed from the  
specification update are archived and available upon request. Specification changes, specification  
clarifications and documentation changes are removed from the specification update when the  
appropriate changes are made to the appropriate product specification or user documentation  
(datasheets, manuals, etc.).  
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6
Intel 80303 and 80302 I/O Processors Specification Update  
 
Summary Table of Changes  
Summary Table of Changes  
The following table indicates the errata, specification changes, specification clarifications, or  
®
®
documentation changes which apply to the Intel 80303 and Intel 80302 I/O Processors product.  
Intel may fix some of the errata in a future stepping of the component, and account for the other  
outstanding issues through documentation or specification changes as noted. This table uses the  
following notations:  
Codes Used in Summary Table  
Stepping  
X:  
Errata exists in the stepping indicated. Specification Change or  
Clarification that applies to this stepping.  
(No mark)  
or (Blank box):  
This erratum is fixed in listed stepping or specification change does not  
apply to listed stepping.  
Page  
(Page):  
Page location of item in this document.  
Status  
Doc:  
Document change or update will be implemented.  
This erratum is intended to be fixed in a future step of the component.  
This erratum has been previously fixed.  
Fix:  
Fixed:  
NoFix:  
Eval:  
There are no plans to fix this erratum.  
Plans to fix this erratum are under evaluation.  
Row  
Change bar to left of table row indicates this erratum is either new or  
modified from the previous version of the document.  
®
Intel 80303 and 80302 I/O Processors Specification Update  
7
 
 
Summary Table of Changes  
Errata  
Steppings  
No.  
Page  
Status  
Errata  
A-0  
A-1  
A-2  
X
X
X
NoFix  
NoFix  
X
X
X
Specification Changes  
Steppings  
No.  
Page  
Status  
Specification Changes  
A-2  
#-#  
#-#  
X
Doc  
Specification Clarifications  
Steppings  
No.  
Page  
Status  
Specification Clarifications  
A-0  
A-1  
A-2  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
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8
Intel 80303 and 80302 I/O Processors Specification Update  
 
   
Summary Table of Changes  
Documentation Changes  
No. Document Revision  
Page  
Status  
Documentation Changes  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
272353-001  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
Doc  
272353-001  
272353-001  
Doc  
Doc  
272353-001  
272353-001  
272353-001  
272353-001  
Doc  
Doc  
Doc  
Doc  
272358-007  
272353-001  
Doc  
Doc  
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Intel 80303 and 80302 I/O Processors Specification Update  
9
 
Identification Information  
Identification Information  
Markings  
Topside Markings  
GC80303  
SSSSSS  
MALAY  
FFFFFFFF-[{SN}]  
M
© ‘2000  
INTEL  
®
Intel 80303 I/O Processor  
Die Details  
Intel®  
QDF/  
Spec  
Number  
i960® Core  
Processor  
Speed  
Voltage  
(V)  
Part Number  
Stepping  
Notes  
(MHz)  
GC80303  
A-0  
A-0  
A-1  
A-1  
Q176  
Q196  
3.3  
3.3  
3.3  
3.3  
100  
100  
100  
100  
Samples - limited testing  
Samples - limited testing  
Samples - limited testing  
Production  
GC80303  
GC80303  
GC80303  
Q189  
SL4Q4  
Production - Yield  
GC80303  
GC80302  
GC80302  
A-2  
A-2  
A-2  
SL57T  
Q229  
3.3  
3.3  
3.3  
100  
100  
100  
improvement only, no  
functionality changes.  
Samples - limited testing,  
66 MHz internal bus and  
SDRAM memory interface.  
Production - 66 MHz internal  
bus and SDRAM memory  
interface.  
SL5HS  
®
10  
Intel 80303 and 80302 I/O Processors Specification Update  
 
   
Identification Information  
Device ID Registers  
Address  
Translation Unit  
Revision ID  
Register  
(ATURID - 0x1208)  
Processor  
Device ID  
Register  
PCI-to-PCI  
Bridge Unit  
Revision ID  
Intel® i960® Core Processor  
Device ID  
(DEVICEID - 0xFF00 8710)  
Device and  
Stepping  
(PDIDR - 0x1710) (RIDR - 0x1008)  
80303 A-0  
80303 A-1  
80303 A-2  
80302 A-2  
08879013  
18879013  
18879013  
18878013  
0x00  
0x01  
0x01  
0x01  
0x00  
0x01  
0x01  
0x01  
00823013  
00823013  
00823013  
00823013  
NOTE: There are no functionality differences between the A-1 and A-2 steppings of the 80303. Therefore, the  
Device IDs are the same.  
®
Intel 80303 and 80302 I/O Processors Specification Update  
11  
 
 
Errata  
Errata  
1.  
Single-bit and Multi-bit Error Reporting Cannot Be Individually Enabled by  
ECC Control Register  
Problem:  
The ECC Control Register ECCR is described as having the ability to select multi-bit error and/or  
single-bit error reporting (see Table 13-24 on page 13-31 of the Intel 80303 I/O Processor  
®
Developers Manual). However, the algorithm does not allow individual enabling; that is, the  
reporting is either on or off for both multi-bit and single bit error reporting.  
Implication:  
The error reporting selection (enabled or disabled) will apply to both multi-bit and single-bit errors.  
Workaround: There is no current workaround. If either the ECCR.0 bit or the ECCR.1 bit is selected for  
reporting, then both multi-bit and single-bit error reporting are enabled. If neither bit is selected for  
reporting, then both multi-bit and single-bit error reporting are disabled.  
Status:  
2.  
Instruction Sequence Can Scoreboard a Register Indefinitely  
Problem:  
Register scoreboarding maintains register coherency by preventing parallel execution units from  
accessing registers for which there is an outstanding operation (see section 3.2.3 in the Intel  
®
80303 I/O Processor Developers Manual).  
An instruction sequence that coincides with some specific instruction cache conditions can  
scoreboard a local or global register indefinitely. When this happens, processing can stall at the  
next access to that register, awaiting a scoreboard release that does not come. In that case, external  
bus accesses cease.  
A hardware reset is the only way to release the scoreboard.  
The following three conditions are required to scoreboard a register:  
1. Execution of the following three-instruction sequence:  
a. emul  
b. ld, ldos, ldis, ldob, or ldib  
c. mulo or muli  
Only two-word, MEMB format load instructions that execute in two clock cycles cause the  
failure. Table 1 lists all the versions of these instructions that can produce this failure. Any  
version can be used for each instruction and still produce the failure as long as the sequential  
order is maintained.  
2. The emul must appear at address 0xXXXXXXX8.  
3. Instruction caching must be enabled. The emul instruction must be fetched from external  
memory along with the first word of the load instruction. Also, the second word of the load  
and the multiply instruction must already reside in cache. To accomplish this, the code must  
have run once in order to load the instructions into cache followed by code which causes the  
invalidation of the cache line containing the emul instruction. At this point, re-execution of the  
code sets up the failure condition.  
Once the failure condition occurs, the processor will continue code execution until an instruction  
using the scoreboarded register is encountered, then indefinite processor stall will occur.  
®
12  
Intel 80303 and 80302 I/O Processors Specification Update  
 
     
Errata  
Nominally, the emul multiplies two 32-bit operands to produce a long ordinal (64-bit) result stored  
in two adjacent registers. When the errata occurs, the low-order register receives the correct value,  
but the high-order register becomes scoreboarded indefinitely. The scoreboarded register is always  
odd-numbered (i.e., g1, g3, g5, ..., r7, r9, r11, ...) since the emul instruction always directs the  
high-order result to the odd-numbered register of the destination pair.  
In some cases, the result of the mulo or muli instruction is corrupted, too, but such has never been  
observed apart from the scoreboard failure. Once the scoreboard failure has occurred, subsequent  
mulo or muli instructions that are separated by load instructions can also produce faulty results in  
some cases. The details of this secondary behavior has not been studied as thoroughly as the  
primary scoreboarding issue.  
When the scoreboard stalls the processor, higher-level processes, such as higher-priority interrupts  
and faults, can run as normal unless they access the scoreboarded register and also stall.  
Not all 80303 processors have been observed to exhibit this errata.  
Table 1.  
Instruction Versions that Can Produce a Scoreboard Failure in this Sequence  
Instruction  
Data Type  
Addressing Mode  
Format  
1. Extended  
Multiply  
All  
n/a  
emul reg/lit, reg/lit, reg  
2. Load  
ld exp, reg  
ld exp(reg), reg  
ld exp[reg*scale], reg  
ldos exp, reg  
ldos exp(reg), reg  
ldos exp[reg*scale], reg  
Absolute  
Displacement  
Word - ld  
Ordinal short - ldos  
Integer short - ldis  
Ordinal byte - ldob  
Integer byte - ldib  
ldis exp, reg  
Register Indirect with  
Displacement  
ldis exp(reg), reg  
ldis exp[reg*scale], reg  
Index with  
Displacement  
ldob exp, reg  
ldob exp(reg), reg  
ldob exp[reg*scale], reg  
ldib exp, reg  
ldib exp(reg), reg  
ldib exp[reg*scale], reg  
3. Multiply  
Ordinal  
Integer  
mulo reg/lit, reg/lit, reg  
muli reg/lit, reg/lit, reg  
n/a  
Implication:  
Systems containing this instruction sequence may exhibit sporadic and unrepeatable stall failures  
depending on where these instructions appear in the executable memory image and the runtime  
dynamics as they affect the Icache.  
Workaround: Avoid this sequence of instructions in systems that employ the instruction cache.  
Status:  
NoFix. Refer to Summary Table of Changes to determine the affected stepping(s).  
®
Intel 80303 and 80302 I/O Processors Specification Update  
13  
 
 
Specification Changes  
Specification Changes  
1.  
Summary of the Intel® 80302 I/O Processor  
Problem:  
The Intel® 80302 I/O processor is based on the A-2 stepping of the Intel® 80303 I/O processor.  
The 80302 I/O processor is identical to the 80303 I/O processor, except the SDRAM and internal  
2
2
bus run at 66 MHz. For applications that use the I C unit, the I C clock is generated from the  
2
internal bus clock, so the ICCR (I C Clock Count Register) needs to be properly adjusted.  
The Device ID Register (DIDR; 1002H), in the Bridge configuration header, is 0308H for the  
80302 I/O processor.  
The ATU Device ID Register (ATUDID; 1202H), in the ATU configuration header, is 5308H for  
the 80302 I/O processor.  
The 80303 I/O processor manual, datasheet and design guide should be used when designing with  
the 80302 I/O processor.  
Status:  
The 80302 I/O processor will be introduced with the A-2 stepping.  
®
14  
Intel 80303 and 80302 I/O Processors Specification Update  
 
   
Specification Clarifications  
Specification Clarifications  
1.  
ECC is Always Enabled  
Problem:  
ECC is always enabled, therefore do not design an Intel® 80303 I/O processor based product  
without ECC implemented, this causes severe system errors. On the Intel® 80960RM/RN I/O  
processors, ECCR.3 can be cleared to disable ECC, but with the 80303 I/O processor, ECCR.3 is  
reserved.  
2.  
32-bit SDRAM is Not Supported  
Problem:  
The memory controller on the 80303 I/O processor supports between 32 and 512 Mbytes of 64-bit  
SDRAM, but 32-bit SDRAM is not supported. On the 80960RM/RN I/O processors, 32-bit  
memory was selected by the 32BITMEM_EN# pin (multiplexed on RAD[2]), and by reading a '0'  
from SDCR.2, this would indicate a 32-bit data bus width. But, for the 80303 I/O processor the  
32BITMEM_EN# pin does not exist and SDCR.2 is reserved.  
3.  
Non-Battery Backup Systems  
Problem:  
Applications that do not support battery back-up should follow these recommendations:  
1. Pull the PWRDELAY pin low through a 1.5K pulldown. Pulling it low has the effect of  
keeping the power fail state machine in reset, therefore not allowing the power fail sequence to  
ever occur.  
2. Pull the CKE pins high on the SDRAMs, and leave the SCKE signals on the 80303 as 'no  
connects'. This keeps the SDRAM from entering a pseudo, self-refresh mode which can cause  
a lock-up condition on the SDRAM device.  
4.  
POCCDR and SOCCDR Functionality  
Problem:  
The Primary Outbound Configuration Cycle Data Register (POCCDR) and Secondary Outbound  
Configuration Cycle Data Register (SOCCDR) are used to initiate configuration cycles to PCI  
target devices. On page 15-57, Table 15-26 in the Intel 80303 I/O Processor Developers Manual,  
®
these registers are stated as “Not Available in PCI Configuration Space”.  
To clarify, when these registers are either read or written via PCI during a scan of configuration space,  
an unwanted configuration cycle is initiated by the 80303 to the address held in the Primary  
Outbound Configuration Cycle Address Register (POCCAR) or Secondary Outbound Configuration  
Cycle Address Register (SOCCAR) based on a read or write to POCCDR or SOCCDR respectively.  
An invalid address causes the 80303 to signal a master abort. Only the first 64 bytes in the ATU  
Configuration Header is read during configuration. Any thing above 64 bytes up to 256 bytes is  
defined as device-specific and not accessed by a master. This does not have to rule out access by any  
master, only a master which does not have knowledge of the device-specific registers.  
5.  
‘Bus Hold’ Devices on the RAD Bus  
Problem:  
There are six user mode configuration pins (RST_MODE#, ONCE#, STEST, RETRY, SPMEM#  
and 32BITPCI_EN#) and three test mode configuration pins (on RAD8, 7 and 0) that are  
multiplexed on the RAD[8:0] signals. All these signals have internal pull-ups, so there is no need  
for external pull-ups. But, if the application requires an active low signal, then an external  
pull-down needs to be added. The configuration signals are latched on the rising edge of P_RST#.  
Devices with a ‘bus hold’ feature (i.e., CPLD) connected to the RAD bus may pull the RAD[8:0]  
signals low at the rising edge of P_RST#, causing the 80303 to enter an undesired mode. 80303  
designs that use ‘bus hold’ devices should either turn off the ‘bus hold’ feature or verify that proper  
signal levels are being maintained at the rising edge of P_RST#.  
®
Intel 80303 and 80302 I/O Processors Specification Update  
15  
 
           
Specification Clarifications  
6.  
SREQ64# Functionality  
Problem:  
There is an SREQ64# functionality difference between the A-1 and A-2 steppings of the 80303 I/O  
processors. (This functionality is also on the 80302 since it is based on the A-2 stepping.) During  
the power up sequence, the S_REQ64# signal is sampled by PCI devices on the secondary PCI bus  
to determine 64-bit or 32-bit PCI operation. On the A-1 stepping, S_REQ64# is deasserted one  
P_CLK after the deassertion of S_RST# (as stated in the Developer's Manual and Datasheet). On  
the A-2 stepping, SREQ64# is deasserted approximately 600ps after the deassertion of S_RST#.  
The PCI Local Bus Specification, Revision 2.2 has a setup and hold specification for REQ64# with  
respect to RST#. Even though the Intel Datasheets and Developer's Manuals state that,  
“S_REQ64# is deasserted one P_CLK after the deassertion of S_RST#”, the PCI Local Bus  
Specification, Revision 2.2 states that the RST# to REQ64# hold time is 0-50ns. Since the RST# to  
REQ64# hold time can be zero, compliant devices should be sampling REQ64# during the  
REQ64# to RST# setup time which is a minimum of 10 clock cycles. (see pages 128 and 135,  
table 4-6 and figure 4-11 of the PCI Local Bus Specification, Revision 2.2)  
The implication of this change is that some 64-bit PCI devices on the secondary PCI bus only  
works in 32-bit PCI mode. This could be due to using a non-PCI compliant device or because of  
trace delays between the S_RST# and S_REQ64# signals. Verify proper functionality on 80303  
A-2 designs. The processor stepping identification is listed page 10. Also see Documentation  
Changes #32 and 33 for corrections to the datasheet and manual.  
7.  
PCI Local Bus Specification, Revision 2.3 Compliancy  
®
Problem:  
The Intel 80303 I/O processor (80303) was designed to be compliant with the PCI Local Bus  
Specification, Revision 2.2. (This functionality is also on the 80302 since it is based on the A-2  
stepping.). Since the release of the 80303, the PCI Special Interest Group has released a new  
specification revision, PCI Local Bus Specification, Revision 2.3. There are no plans to step the  
80303 to make it compliant with the PCI Local Bus Specification, Revision 2.3.  
8.  
DMA and AAU End of Chain Functionality  
Problem:  
There is a case where a race condition occurs between the End of Chain (EOC), Channel Active  
(CA) and resume bit, which causes a bogus EOC. The Intel 80303 I/O processor (80303) (this  
®
functionality is also on the 80302 since it is based on the A-2 stepping.) asserts the EOC bit when  
the NDAR is zero, even when the chain resume bit is set. When the resume bit is set, the CA bit is  
cleared for one cycle and then set again, modifying the CA and EOC at the same time.  
Consider the case when a chain has been added to the list after the last descriptor is read by the  
DMA. In this case, the resume bit gets set by software. The EOC occurs because the NDAR was  
zero when read and the CA bit is momentarily cleared. The DMA processes the resume and sets the  
CA bit again. It remains active until it again reaches an NDAR of 0.  
One way to handle this condition, is for the software to track the last descriptor believed to be in  
memory. To compare the NDAR and DAR in the DMA descriptor MMR space, to see when they  
are 0, and are the last expected DAR. In this situation, the DMA is already idle and the CA bit is  
clear. When not, ignore the EOC interrupt. A bogus EOC is detected when NDAR is not 0 and  
resume is set.  
®
16  
Intel 80303 and 80302 I/O Processors Specification Update  
 
     
Documentation Changes  
Documentation Changes  
1.  
Title Page revision number  
Issue:  
Manual indicates Revision 0.5.  
Implication:  
This type of revision numbering is not used with published documents. Refer to the Document  
Number 272353-001. The extension -001 is the correct revision number for this document.  
Workaround: Ignore revision number 0.5.  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual.  
2.  
Figure 9-3 on pg 9-9 did not print correctly  
Problem:  
Figure 9-3 on pg 9-9 did not print correctly.  
Workaround: Replace Figure 9-3 with the following:  
®
Intel 80960  
Local Bus Address  
31  
0
Is  
Was  
NFP-96 NFP-(n+1)*32  
Fault Data  
NFP-88 NFP-24-n*32  
NFP-84  
NFP-20-n*32  
NFP-76 NFP-12-n*32  
FSUBTYPE (N)  
FTYPE (N)  
NFP-72  
NFP-68  
NFP-8-n*32  
NFP-4-n*32  
Address of Faulting Instruction (n)  
NFP-64 NFP-64  
Resumption Information  
NFP-52  
NFP-48  
NFP-44  
Override Fault Data  
Fault Data  
NFP-32  
NFP-20  
NFP-16  
OTYPE  
OSUBTYPE  
Process Controls  
NFP-12  
Arithmetic Controls  
FTYPE (1)  
FSUBTYPE (1)  
4
NFP-8  
NFP-4  
Address of Faulting Instruction (1)  
31  
28  
24  
20  
16  
12  
8
0
Note: "NFP" means New Frame Pointer  
Reserved  
A6406-01  
®
Intel 80303 and 80302 I/O Processors Specification Update  
17  
 
   
Documentation Changes  
3.  
Figure 13-22 on pg 13-40 did not print correctly  
Figure 13-22 on pg 13-40 did not print correctly.  
Problem:  
Workaround: Replace Figure 13-22 with the following:  
out  
SCKE  
PULLCKE = 1  
PULLCKE = 0  
P_RST#  
A6814-01  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual.  
4.  
Figure 13-18, pg 13-35  
Problem:  
Replace Figure 13-18 with the following:  
I_CLK  
SDQ(71:0)  
SDQ(71:0)  
DQ(71:0)  
DQ(71:0)  
P_CLK  
DCLKout  
DCLKin  
CLK(3:0)  
CLK(3:0)  
SDRAM  
DIMM0  
SDRAM  
DIMM1  
A4662-02  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual.  
®
18  
Intel 80303 and 80302 I/O Processors Specification Update  
 
   
Documentation Changes  
5.  
Figure 15-2 on pg 15-3 did not print correctly  
Problem:  
Figure 15-2 on pg 15-3 did not print correctly.  
Workaround: Replace Figure 15-2 with the following:  
Primary ATU  
P_ORQ 16 Bytes  
P_OWQ 16 Bytes  
P_OTQ  
P_IWQAD  
P_IWQ 256 Bytes  
P_IRQ 256 Bytes  
P_ITQ1  
P_ITQ2  
P_IDWQ  
8 Bytes  
PCI-to-PCI  
Bridge  
Secondary ATU  
S_ORQ 16 Bytes  
S_OWQ 16 Bytes  
S_OTQ  
S_IWQAD  
S_IWQ 256 Bytes  
S_IRQ 256 Bytes  
S_ITQ1  
S_ITQ2  
A6490-01  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual.  
®
Intel 80303 and 80302 I/O Processors Specification Update  
19  
 
 
Documentation Changes  
6.  
Incorrect Vendor ID in ATU register  
The value for the Vendor ID register (ATUVID) is incorrect.  
Problem:  
Workaround: Replace Table 15-28 on page 15-60 with the following table:  
15  
12  
8
4
0
IOP  
Attributes  
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw  
PCI  
Attributes  
ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro  
Intel® i960® Core Local Bus Address  
1200H  
PCI Configuration Address Offset  
00H - 01H  
Attribute Legend:  
RV = Reserved  
PR = Preserved  
RS = Read/Set  
RW = Read/Write  
RC = Read Clear  
RO = Read Only  
NA = Not Accessible  
Bit  
Default  
Description  
ATU Vendor ID - This is a 16-bit value assigned to Intel. This register, combined with the DID, uniquely  
identify the PCI device. Access type is Read/Write to allow the 80303 I/O processor to configure the  
register as a different vendor ID to simulate the interface of a standard mechanism currently used by  
existing application software.  
15:00  
8086H  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual.  
7.  
Section 23.2 on pg 23-2 has incorrect text  
Problem:  
The text and register descriptions in section 23.2 are incorrect.  
Workaround: Replace Section 23.2 Register Definitions with the following:  
All three GPIO registers are visible as 80303 I/O processor memory mapped registers and can be  
accessed through the internal memory bus. Each is a 8-bit register and is memory-mapped in the  
80303 processor memory space. The memory-mapped addresses of the GPIO control registers are  
found in Appendix C, “Peripheral Memory-Mapped Registers.”  
There are four control and status registers for the PCI And Peripheral Interrupt Controller:  
GPIO Output Enable Register  
GPIO Input Data Register  
GPIO Output Data Register  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual.  
®
20  
Intel 80303 and 80302 I/O Processors Specification Update  
 
   
Documentation Changes  
8.  
Table 24-4 on pg 24-8 is incorrect  
Problem:  
Table 24-4 on pg 24-8 is incorrect.  
Workaround: Replace Table 24-4 with the following table:  
Table 24-4. Intel® 80303 I/O Processor Boundary Scan Register Bit Order (Sheet 1 of 10)  
#
Cell Type  
Name  
scl,  
Function Safe bit Control Signal  
Disable Value  
1,  
Disable Result  
"0  
"1  
"2  
"3  
"4  
"5  
"6  
"7  
"8  
"9  
(CBSC_1,  
(BC_1,  
bidir,  
X,  
1,  
Z)," &  
*,  
control,  
bidir,  
1)," &  
X,  
(CBSC_1,  
(BC_1,  
sda,  
3,  
1,  
Z)," &  
*,  
control,  
1)," &  
(BC_1,  
rale,  
output3, X,  
output3, X,  
111,  
111,  
7,  
1,  
1,  
0,  
Z)," &  
Z)," &  
Z)," &  
(BC_1,  
roez,  
rad(15),  
*,  
(CBSC_1,  
(BC_1,  
bidir,  
X,  
control,  
0)," &  
(BC_1,  
rcez(1),  
*,  
output3, X,  
9,  
0,  
0,  
Z)," &  
Z)," &  
(BC_1,  
control,  
0)," &  
"10  
"11  
"12  
"13  
"14  
"15  
"16  
"17  
"18  
"19  
"20  
"21  
"22  
"23  
"24  
"25  
"26  
"27  
"28  
"29  
"30  
"31  
"32  
"33  
"34  
"35  
"36  
"37  
"38  
"39  
"40  
"41  
(BC_1,  
rcez(0),  
*,  
output3, X,  
11,  
(BC_1,  
control,  
bidir,  
0)," &  
X,  
(CBSC_1,  
(BC_1,  
rad(6),  
rwez,  
rad(9),  
rad(10),  
*,  
28,  
111,  
18,  
16,  
1,  
1,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
output3, X,  
(CBSC_1,  
(CBSC_1,  
(BC_1,  
bidir,  
X,  
bidir,  
X,  
control,  
bidir,  
0)," &  
X,  
(CBSC_1,  
(BC_1,  
rad(11),  
*,  
18,  
20,  
22,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
control,  
bidir,  
0)," &  
X,  
(CBSC_1,  
(BC_1,  
rad(13),  
*,  
control,  
bidir,  
0)," &  
X,  
(CBSC_1,  
(BC_1,  
rad(12),  
*,  
control,  
bidir,  
0)," &  
X,  
(CBSC_1,  
(CBSC_1,  
(BC_1,  
rad(8),  
rad(14),  
*,  
28,  
25,  
1,  
0,  
Z)," &  
Z)," &  
bidir,  
X,  
control,  
bidir,  
0)," &  
X,  
(CBSC_1,  
(CBSC_1,  
(BC_1,  
rad(2),  
rad(1),  
*,  
28,  
28,  
1,  
1,  
Z)," &  
Z)," &  
bidir,  
X,  
control,  
bidir,  
1)," &  
X,  
(CBSC_1,  
(BC_1,  
rad(16),  
*,  
30,  
0,  
Z)," &  
control,  
bidir,  
0)," &  
X,  
(CBSC_1,  
(CBSC_1,  
(CBSC_1,  
(CBSC_1,  
(BC_4,  
rad(0),  
rad(5),  
rad(4),  
rad(3),  
nc1,  
28,  
28,  
28,  
28,  
1,  
1,  
1,  
1,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
input,  
bidir,  
X)," &  
X,  
(CBSC_1,  
(CBSC_1,  
(BC_1,  
rad(7),  
GPIO(0),  
*,  
28,  
38,  
1,  
1,  
Z)," &  
Z)," &  
bidir,  
X,  
control,  
bidir,  
1)," &  
X,  
(CBSC_1,  
(BC_1,  
GPIO(1),  
*,  
40,  
42,  
1,  
1,  
Z)," &  
Z)," &  
control,  
bidir,  
1)," &  
X,  
(CBSC_1,  
GPIO(2),  
®
Intel 80303 and 80302 I/O Processors Specification Update  
21  
 
 
Documentation Changes  
Table 24-4. Intel® 80303 I/O Processor Boundary Scan Register Bit Order (Sheet 2 of 10)  
#
Cell Type  
Name  
Function Safe bit Control Signal  
control, 1)," &  
output3, X,  
Disable Value  
Disable Result  
"42  
"43  
"44  
"45  
"46  
"47  
"48  
"49  
"50  
"51  
"52  
"53  
"54  
"55  
"56  
"57  
"58  
"59  
"60  
"61  
"62  
"63  
"64  
"65  
"66  
"67  
"68  
"69  
"70  
"71  
"72  
"73  
"74  
"75  
"76  
"77  
"78  
"79  
"80  
"81  
"82  
"83  
"84  
"85  
"86  
"87  
"88  
(BC_1,  
(BC_1,  
(CBSC_1,  
(BC_1,  
(CBSC_1,  
(BC_1,  
(CBSC_1,  
(BC_1,  
(CBSC_1,  
(BC_1,  
(CBSC_1,  
(BC_1,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_1,  
(BC_4,  
(BC_4,  
(BC_1,  
(BC_4,  
(BC_1,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_4,  
(BC_1,  
(BC_1,  
(BC_1,  
(BC_1,  
(BC_1,  
(BC_1,  
(BC_1,  
*,  
i_rstz,  
GPIO(3),  
*,  
111,  
45,  
1,  
Z)," &  
Z)," &  
bidir,  
X,  
1,  
1,  
1,  
1,  
1,  
control,  
bidir,  
1)," &  
X,  
GPIO(4),  
*,  
47,  
49,  
51,  
53,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
control,  
bidir,  
1)," &  
X,  
GPIO(5),  
*,  
control,  
bidir,  
1)," &  
X,  
GPIO(6),  
*,  
control,  
bidir,  
1)," &  
X,  
GPIO(7),  
*,  
control,  
input,  
input,  
input,  
input,  
input,  
input,  
1)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
irqz(0),  
irqz(1),  
irqz(2),  
irqz(3),  
irqz(4),  
irqz(5),  
nc2,  
output3, X,  
65,  
1,  
1,  
Z)," &  
Z)," &  
lcdinitz,  
logic1,  
failz,  
input,  
input,  
X)," &  
X)," &  
output3, X,  
X)," &  
110,  
nmiz,  
*,  
input,  
control,  
input,  
input,  
input,  
input,  
input,  
input,  
input,  
input,  
input,  
input,  
input,  
input,  
input,  
input,  
input,  
1)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
X)," &  
nc3,  
nc4,  
nc5,  
nc6,  
nc7,  
nc8,  
nc9,  
nc10,  
nc11,  
nc12,  
nc20,  
nc13,  
nc15,  
nc14,  
nc16,  
pwrdelay, input,  
nc17,  
nc19,  
nc18,  
*,  
output3, X,  
output3, X,  
output3, X,  
65,  
65,  
85,  
1,  
1,  
1,  
Z)," &  
Z)," &  
Z)," &  
control,  
1)," &  
dclk(3),  
dclk(2),  
dclk(1),  
output3, X,  
output3, X,  
output3, X,  
111,  
111,  
111,  
1,  
1,  
1,  
Z)," &  
Z)," &  
Z)," &  
®
22  
Intel 80303 and 80302 I/O Processors Specification Update  
 
Documentation Changes  
Table 24-4. Intel® 80303 I/O Processor Boundary Scan Register Bit Order (Sheet 3 of 10)  
#
Cell Type  
Name  
Function Safe bit Control Signal  
Disable Value  
1,  
Disable Result  
"89  
"90  
"91  
"92  
"93  
"94  
"95  
"96  
"97  
"98  
"99  
(BC_1,  
dclk(0),  
dclkout,  
dq(35),  
dq(0),  
*,  
output3, X,  
output3, X,  
111,  
111,  
95,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
(BC_1,  
1,  
0,  
0,  
(CBSC_1,  
(CBSC_1,  
(BC_1,  
bidir,  
bidir,  
control,  
bidir,  
control,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
control,  
bidir,  
control,  
control,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
X,  
X,  
93,  
0)," &  
X,  
(CBSC_1,  
(BC_1,  
dq(32),  
*,  
95,  
0,  
Z)," &  
0)," &  
X,  
(CBSC_1,  
(CBSC_1,  
(CBSC_1,  
(CBSC_1,  
dq(2),  
dq(36),  
dq(33),  
dq(1),  
dq(34),  
dq(37),  
dq(4),  
dq(39),  
dq(41),  
dq(38),  
dq(3),  
dq(43),  
*,  
93,  
95,  
95,  
93,  
95,  
95,  
93,  
95,  
95,  
95,  
93,  
108,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
X,  
"100 (CBSC_1,  
"101 (CBSC_1,  
"102 (CBSC_1,  
"103 (CBSC_1,  
"104 (CBSC_1,  
"105 (CBSC_1,  
"106 (CBSC_1,  
"107 (CBSC_1,  
"108 (BC_1,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
0)," &  
X,  
"109 (CBSC_1,  
"110 (BC_1,  
dq(40),  
*,  
95,  
0,  
Z)," &  
1)," &  
1)," &  
X,  
"111 (BC_1,  
*,  
"112 (CBSC_1,  
"113 (CBSC_1,  
"114 (CBSC_1,  
"115 (CBSC_1,  
"116 (CBSC_1,  
"117 (CBSC_1,  
"118 (CBSC_1,  
"119 (CBSC_1,  
"120 (CBSC_1,  
"121 (CBSC_1,  
"122 (CBSC_1,  
"123 (CBSC_1,  
"124 (CBSC_1,  
"125 (CBSC_1,  
"126 (CBSC_1,  
"127 (CBSC_1,  
"128 (CBSC_1,  
"129 (CBSC_1,  
"130 (BC_1,  
dq(5),  
dq(6),  
dq(8),  
dq(42),  
dq(7),  
dq(45),  
dq(44),  
dq(9),  
dq(47),  
dq(12),  
dq(10),  
dq(11),  
dq(46),  
dq(14),  
dq(13),  
scb(5),  
dq(15),  
scb(4),  
sdqm(4),  
scasz,  
scb(0),  
swez,  
scb(1),  
sdqm(0),  
202,  
202,  
202,  
204,  
202,  
204,  
204,  
202,  
204,  
202,  
202,  
202,  
204,  
202,  
202,  
200,  
202,  
200,  
205,  
205,  
200,  
205,  
200,  
205,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
1,  
1,  
0,  
1,  
0,  
1,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
output3, X,  
output3, X,  
"131 (BC_1,  
"132 (CBSC_1,  
"133 (BC_1,  
bidir,  
output3, X,  
bidir, X,  
output3, X,  
X,  
"134 (CBSC_1,  
"135 (BC_1,  
®
Intel 80303 and 80302 I/O Processors Specification Update  
23  
 
Documentation Changes  
Table 24-4. Intel® 80303 I/O Processor Boundary Scan Register Bit Order (Sheet 4 of 10)  
#
Cell Type  
Name  
Function Safe bit Control Signal  
Disable Value  
1,  
Disable Result  
"136 (BC_1,  
"137 (BC_1,  
"138 (BC_1,  
"139 (BC_1,  
"140 (BC_1,  
"141 (BC_1,  
"142 (BC_1,  
"143 (BC_1,  
"144 (BC_1,  
"145 (BC_1,  
"146 (BC_1,  
"147 (BC_1,  
"148 (BC_1,  
"149 (BC_1,  
"150 (BC_1,  
"151 (BC_1,  
"152 (BC_1,  
"153 (BC_1,  
"154 (BC_1,  
"155 (BC_4,  
"156 (BC_1,  
"157 (BC_1,  
"158 (BC_1,  
"159 (BC_1,  
"160 (BC_1,  
"161 (CBSC_1,  
"162 (CBSC_1,  
"163 (BC_1,  
"164 (BC_1,  
"165 (CBSC_1,  
"166 (CBSC_1,  
"167 (CBSC_1,  
"168 (CBSC_1,  
"169 (CBSC_1,  
"170 (CBSC_1,  
"171 (CBSC_1,  
"172 (CBSC_1,  
"173 (CBSC_1,  
"174 (CBSC_1,  
"175 (CBSC_1,  
"176 (CBSC_1,  
"177 (BC_1,  
"178 (CBSC_1,  
"179 (CBSC_1,  
"180 (CBSC_1,  
"181 (CBSC_1,  
"182 (CBSC_1,  
scez(1),  
sdqm(5),  
sdqm(1),  
scez(0),  
sa(0),  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
205,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
srasz,  
sa(1),  
sa(2),  
sa(4),  
sa(3),  
sa(5),  
sa(6),  
sa(8),  
sa(7),  
sa(9),  
sba(0),  
sa(11),  
sa(10),  
sba(1),  
dclkin,  
input,  
X)," &  
sa(12),  
sdqm(2),  
sdqm(3),  
scke(0),  
sdqm(6),  
scb(2),  
scb(3),  
sdqm(7),  
sa(13),  
scb(6),  
dq(16),  
dq(17),  
scb(7),  
dq(48),  
dq(18),  
dq(49),  
dq(19),  
dq(50),  
dq(20),  
dq(51),  
dq(21),  
scke(1),  
dq(22),  
dq(52),  
dq(23),  
dq(53),  
dq(24),  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
205,  
205,  
205,  
205,  
205,  
200,  
200,  
205,  
205,  
200,  
201,  
201,  
200,  
204,  
201,  
204,  
201,  
204,  
201,  
204,  
201,  
205,  
201,  
204,  
201,  
204,  
201,  
1,  
1,  
1,  
1,  
1,  
0,  
0,  
1,  
1,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
1,  
0,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
bidir,  
bidir,  
X,  
X,  
output3, X,  
output3, X,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
output3, X,  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
X,  
X,  
X,  
X,  
X,  
®
24  
Intel 80303 and 80302 I/O Processors Specification Update  
 
Documentation Changes  
Table 24-4. Intel® 80303 I/O Processor Boundary Scan Register Bit Order (Sheet 5 of 10)  
#
Cell Type  
Name  
Function Safe bit Control Signal  
Disable Value  
0,  
Disable Result  
"183 (CBSC_1,  
"184 (CBSC_1,  
"185 (CBSC_1,  
"186 (CBSC_1,  
"187 (CBSC_1,  
"188 (CBSC_1,  
"189 (CBSC_1,  
"190 (CBSC_1,  
"191 (CBSC_1,  
"192 (CBSC_1,  
"193 (CBSC_1,  
"194 (CBSC_1,  
"195 (CBSC_1,  
"196 (CBSC_1,  
"197 (CBSC_1,  
"198 (CBSC_1,  
"199 (CBSC_1,  
"200 (BC_1,  
dq(54),  
dq(55),  
dq(25),  
dq(26),  
dq(56),  
dq(27),  
dq(57),  
dq(28),  
dq(59),  
dq(58),  
dq(30),  
dq(29),  
dq(60),  
dq(61),  
dq(31),  
dq(62),  
dq(63),  
*,  
bidir,  
X,  
204,  
204,  
201,  
201,  
204,  
201,  
204,  
201,  
204,  
204,  
201,  
201,  
204,  
204,  
201,  
204,  
204,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
bidir,  
X,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
bidir,  
X,  
control,  
control,  
control,  
control,  
control,  
control,  
0)," &  
0)," &  
0)," &  
0)," &  
0)," &  
1)," &  
X,  
"201 (BC_1,  
*,  
"202 (BC_1,  
*,  
"203 (BC_1,  
*,  
"204 (BC_1,  
*,  
"205 (BC_1,  
*,  
"206 (CBSC_1,  
"207 (CBSC_1,  
"208 (CBSC_1,  
"209 (CBSC_1,  
"210 (CBSC_1,  
"211 (CBSC_1,  
"212 (CBSC_1,  
"213 (CBSC_1,  
"214 (CBSC_1,  
"215 (CBSC_1,  
"216 (CBSC_1,  
"217 (CBSC_1,  
"218 (CBSC_1,  
"219 (CBSC_1,  
"220 (CBSC_1,  
"221 (CBSC_1,  
"222 (CBSC_1,  
"223 (CBSC_1,  
"224 (CBSC_1,  
"225 (CBSC_1,  
"226 (CBSC_1,  
"227 (CBSC_1,  
"228 (CBSC_1,  
"229 (CBSC_1,  
s_ad(38), bidir,  
s_ad(34), bidir,  
s_ad(42), bidir,  
s_ad(36), bidir,  
s_ad(33), bidir,  
s_ad(32), bidir,  
s_ad(40), bidir,  
s_ad(37), bidir,  
s_ad(46), bidir,  
s_ad(35), bidir,  
s_ad(44), bidir,  
s_ad(39), bidir,  
s_ad(41), bidir,  
s_ad(50), bidir,  
s_ad(48), bidir,  
s_ad(45), bidir,  
s_ad(47), bidir,  
s_ad(54), bidir,  
s_ad(43), bidir,  
s_ad(49), bidir,  
s_ad(52), bidir,  
s_ad(53), bidir,  
s_ad(51), bidir,  
s_ad(58), bidir,  
325,  
325,  
325,  
325,  
325,  
325,  
325,  
325,  
324,  
324,  
324,  
324,  
324,  
324,  
324,  
324,  
323,  
323,  
323,  
323,  
323,  
323,  
323,  
323,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
®
Intel 80303 and 80302 I/O Processors Specification Update  
25  
 
Documentation Changes  
Table 24-4. Intel® 80303 I/O Processor Boundary Scan Register Bit Order (Sheet 6 of 10)  
#
Cell Type  
Name  
Function Safe bit Control Signal  
Disable Value  
0,  
Disable Result  
"230 (CBSC_1,  
"231 (CBSC_1,  
"232 (CBSC_1,  
"233 (CBSC_1,  
"234 (CBSC_1,  
"235 (CBSC_1,  
"236 (CBSC_1,  
"237 (CBSC_1,  
"238 (CBSC_1,  
"239 (BC_1,  
s_ad(56), bidir,  
s_ad(57), bidir,  
s_ad(55), bidir,  
s_ad(60), bidir,  
s_ad(59), bidir,  
s_ad(62), bidir,  
s_ad(61), bidir,  
s_cbez(5), bidir,  
X,  
322,  
322,  
322,  
322,  
322,  
322,  
322,  
331,  
239,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
X,  
X,  
X,  
X,  
X,  
X,  
s_par64,  
*,  
bidir,  
X,  
control,  
0)," &  
X,  
"240 (CBSC_1,  
"241 (CBSC_1,  
"242 (BC_1,  
s_cbez(4), bidir,  
s_req64z, bidir,  
331,  
242,  
0,  
0,  
Z)," &  
Z)," &  
X,  
*,  
control,  
0)," &  
X,  
"243 (CBSC_1,  
"244 (CBSC_1,  
"245 (CBSC_1,  
"246 (BC_1,  
s_ad(63), bidir,  
s_cbez(7), bidir,  
s_ack64z, bidir,  
322,  
331,  
246,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
*,  
control,  
0)," &  
X,  
"247 (CBSC_1,  
"248 (CBSC_1,  
"249 (CBSC_1,  
"250 (CBSC_1,  
"251 (CBSC_1,  
"252 (CBSC_1,  
"253 (CBSC_1,  
"254 (CBSC_1,  
"255 (CBSC_1,  
"256 (CBSC_1,  
"257 (CBSC_1,  
"258 (CBSC_1,  
"259 (BC_4,  
s_ad(0),  
s_ad(2),  
bidir,  
bidir,  
329,  
329,  
331,  
328,  
329,  
329,  
329,  
329,  
330,  
329,  
328,  
328,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
s_cbez(6), bidir,  
X,  
s_ad(8),  
s_ad(3),  
s_ad(4),  
s_ad(7),  
s_ad(1),  
bidir,  
bidir,  
bidir,  
bidir,  
bidir,  
X,  
X,  
X,  
X,  
X,  
s_cbez(0), bidir,  
X,  
s_ad(5),  
s_ad(6),  
bidir,  
bidir,  
X,  
X,  
s_ad(10), bidir,  
s_m66en, input,  
s_ad(12), bidir,  
s_ad(11), bidir,  
X,  
X)," &  
X,  
"260 (CBSC_1,  
"261 (CBSC_1,  
"262 (CBSC_1,  
"263 (CBSC_1,  
"264 (CBSC_1,  
"265 (BC_1,  
328,  
328,  
329,  
328,  
265,  
0,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
s_ad(9),  
bidir,  
X,  
s_ad(14), bidir,  
X,  
s_serrz,  
*,  
bidir,  
X,  
control,  
0)," &  
X,  
"266 (CBSC_1,  
"267 (CBSC_1,  
"268 (CBSC_1,  
"269 (CBSC_1,  
"270 (BC_1,  
s_ad(15), bidir,  
s_cbez(1), bidir,  
s_ad(13), bidir,  
328,  
330,  
328,  
270,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
s_par,  
*,  
bidir,  
X,  
control,  
bidir,  
0)," &  
X,  
"271 (CBSC_1,  
"272 (CBSC_1,  
"273 (BC_1,  
s_stopz,  
s_perrz,  
*,  
280,  
273,  
0,  
0,  
Z)," &  
Z)," &  
bidir,  
X,  
control,  
bidir,  
0)," &  
X,  
"274 (CBSC_1,  
"275 (BC_1,  
s_lockz,  
*,  
275,  
280,  
0,  
0,  
Z)," &  
Z)," &  
control,  
bidir,  
0)," &  
X,  
"276 (CBSC_1,  
s_trdyz,  
®
26  
Intel 80303 and 80302 I/O Processors Specification Update  
 
Documentation Changes  
Table 24-4. Intel® 80303 I/O Processor Boundary Scan Register Bit Order (Sheet 7 of 10)  
#
Cell Type  
Name  
Function Safe bit Control Signal  
Disable Value  
0,  
Disable Result  
"277 (CBSC_1,  
"278 (BC_1,  
"279 (CBSC_1,  
"280 (BC_1,  
"281 (CBSC_1,  
"282 (BC_1,  
"283 (CBSC_1,  
"284 (CBSC_1,  
"285 (CBSC_1,  
"286 (CBSC_1,  
"287 (CBSC_1,  
"288 (CBSC_1,  
"289 (CBSC_1,  
"290 (CBSC_1,  
"291 (CBSC_1,  
"292 (CBSC_1,  
"293 (CBSC_1,  
"294 (CBSC_1,  
"295 (CBSC_1,  
"296 (CBSC_1,  
"297 (CBSC_1,  
"298 (CBSC_1,  
"299 (CBSC_1,  
"300 (CBSC_1,  
"301 (BC_1,  
"302 (BC_1,  
"303 (BC_4,  
"304 (BC_1,  
"305 (BC_1,  
"306 (BC_1,  
"307 (BC_1,  
"308 (BC_1,  
"309 (BC_1,  
"310 (BC_1,  
"311 (BC_1,  
"312 (BC_4,  
"313 (BC_4,  
"314 (BC_4,  
"315 (BC_4,  
"316 (BC_1,  
"317 (BC_1,  
"318 (BC_4,  
"319 (BC_1,  
"320 (BC_4,  
"321 (BC_1,  
"322 (BC_1,  
"323 (BC_1,  
s_framez, bidir,  
X,  
278,  
280,  
282,  
Z)," &  
*,  
control,  
0)," &  
X,  
s_devselz, bidir,  
0,  
0,  
Z)," &  
Z)," &  
*,  
control,  
0)," &  
X,  
s_irdyz,  
*,  
bidir,  
control,  
0)," &  
X,  
s_ad(16), bidir,  
s_ad(18), bidir,  
s_cbez(2), bidir,  
s_ad(17), bidir,  
s_ad(20), bidir,  
s_ad(21), bidir,  
s_ad(19), bidir,  
s_ad(24), bidir,  
s_ad(22), bidir,  
s_ad(26), bidir,  
s_ad(23), bidir,  
s_cbez(3), bidir,  
s_ad(28), bidir,  
s_ad(25), bidir,  
s_ad(30), bidir,  
s_ad(27), bidir,  
s_ad(29), bidir,  
s_ad(31), bidir,  
327,  
327,  
330,  
327,  
327,  
327,  
327,  
327,  
327,  
326,  
326,  
330,  
326,  
326,  
326,  
326,  
326,  
326,  
333,  
321,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
1,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
s_rstz,  
s_holdaz, output3, X,  
s_holdz, input, X)," &  
s_gntz(0), output3, X,  
output3, X,  
321,  
333,  
333,  
333,  
333,  
333,  
333,  
332,  
0,  
1,  
1,  
1,  
1,  
1,  
1,  
1,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
s_clk(0),  
s_clk(1),  
s_clk(2),  
s_clk(3),  
s_clk(4),  
s_clk(5),  
r_clkout,  
r_clkin,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
output3, X,  
input,  
X)," &  
s_reqz(0), input,  
s_reqz(1), input,  
s_reqz(2), input,  
X)," &  
X)," &  
X)," &  
s_gntz(1), output3, X,  
s_gntz(2), output3, X,  
321,  
321,  
0,  
0,  
Z)," &  
Z)," &  
s_reqz(3), input,  
X)," &  
s_gntz(3), output3, X,  
321,  
0,  
Z)," &  
s_reqz(4), input,  
X)," &  
*,  
*,  
*,  
control,  
0)," &  
0)," &  
0)," &  
control,  
control,  
®
Intel 80303 and 80302 I/O Processors Specification Update  
27  
 
Documentation Changes  
Table 24-4. Intel® 80303 I/O Processor Boundary Scan Register Bit Order (Sheet 8 of 10)  
#
Cell Type  
Name  
Function Safe bit Control Signal  
Disable Value  
Disable Result  
"324 (BC_1,  
"325 (BC_1,  
"326 (BC_1,  
"327 (BC_1,  
"328 (BC_1,  
"329 (BC_1,  
"330 (BC_1,  
"331 (BC_1,  
"332 (BC_1,  
"333 (BC_1,  
"334 (BC_1,  
"335 (BC_4,  
"336 (BC_1,  
"337 (BC_1,  
"338 (BC_1,  
"339 (BC_1,  
"340 (BC_4,  
"341 (CBSC_1,  
"342 (BC_4,  
"343 (BC_1,  
"344 (BC_1,  
"345 (CBSC_1,  
"346 (BC_1,  
"347 (BC_1,  
"348 (BC_1,  
"349 (BC_1,  
"350 (CBSC_1,  
"351 (BC_1,  
"352 (BC_1,  
"353 (CBSC_1,  
"354 (CBSC_1,  
"355 (CBSC_1,  
"356 (BC_4,  
"357 (CBSC_1,  
"358 (CBSC_1,  
"359 (CBSC_1,  
"360 (CBSC_1,  
"361 (CBSC_1,  
"362 (CBSC_1,  
"363 (CBSC_1,  
"364 (CBSC_1,  
"365 (CBSC_1,  
"366 (CBSC_1,  
"367 (CBSC_1,  
"368 (CBSC_1,  
"369 (BC_1,  
"370 (CBSC_1,  
*,  
*,  
*,  
*,  
*,  
*,  
*,  
*,  
*,  
*,  
control,  
control,  
control,  
control,  
control,  
control,  
control,  
control,  
control,  
control,  
0)," &  
0)," &  
0)," &  
0)," &  
0)," &  
0)," &  
0)," &  
0)," &  
1)," &  
1)," &  
s_gntz(4), output3, X,  
337,  
337,  
339,  
0,  
Z)," &  
Z)," &  
Z)," &  
s_reqz(5), input,  
X)," &  
s_gntz(5), output3, X,  
0,  
0,  
*,  
control,  
0)," &  
p_intz(1), output3, X,  
*,  
control,  
input,  
0)," &  
X)," &  
X,  
p_gntz,  
p_ad(28), bidir,  
p_rstz, input,  
455,  
344,  
0,  
0,  
Z)," &  
Z)," &  
X)," &  
p_intz(3), output3, X,  
*,  
control,  
0)," &  
X,  
p_ad(30), bidir,  
455,  
347,  
0,  
0,  
Z)," &  
Z)," &  
p_intz(2), output3, X,  
*, control, 0)," &  
p_intz(0), output3, X,  
349,  
0,  
Z)," &  
*,  
control,  
0)," &  
X,  
p_ad(31), bidir,  
455,  
352,  
0,  
0,  
Z)," &  
Z)," &  
p_reqz,  
*,  
output3, X,  
control,  
0)," &  
X,  
p_ad(26), bidir,  
p_ad(29), bidir,  
p_ad(22), bidir,  
455,  
455,  
454,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
p_idsel,  
input,  
X)," &  
X,  
p_ad(25), bidir,  
p_ad(24), bidir,  
p_ad(27), bidir,  
p_ad(20), bidir,  
p_ad(23), bidir,  
p_cbez(3), bidir,  
p_ad(21), bidir,  
p_ad(18), bidir,  
p_ad(19), bidir,  
p_ad(16), bidir,  
p_ad(17), bidir,  
p_framez, bidir,  
455,  
455,  
455,  
454,  
454,  
453,  
454,  
454,  
454,  
454,  
454,  
369,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
*,  
control,  
0)," &  
X,  
p_cbez(2), bidir,  
453,  
0,  
Z)," &  
®
28  
Intel 80303 and 80302 I/O Processors Specification Update  
 
Documentation Changes  
Table 24-4. Intel® 80303 I/O Processor Boundary Scan Register Bit Order (Sheet 9 of 10)  
#
Cell Type  
Name  
Function Safe bit Control Signal  
Disable Value  
0,  
Disable Result  
"371 (CBSC_1,  
"372 (CBSC_1,  
"373 (BC_1,  
p_stopz,  
p_trdyz,  
*,  
bidir,  
X,  
373,  
373,  
Z)," &  
Z)," &  
bidir,  
X,  
0,  
control,  
0)," &  
p_devselz  
,
"374 (CBSC_1,  
bidir,  
X,  
373,  
376,  
0,  
0,  
Z)," &  
Z)," &  
"375 (CBSC_1,  
"376 (BC_1,  
p_irdyz,  
*,  
bidir,  
X,  
control,  
0)," &  
X,  
"377 (CBSC_1,  
"378 (CBSC_1,  
"379 (BC_1,  
p_ad(15), bidir,  
452,  
379,  
0,  
0,  
Z)," &  
Z)," &  
p_par,  
*,  
bidir,  
X,  
control,  
bidir,  
0)," &  
X,  
"380 (CBSC_1,  
"381 (BC_1,  
p_perrz,  
*,  
381,  
0,  
Z)," &  
control,  
input,  
0)," &  
X)," &  
X,  
"382 (BC_4,  
p_lockz,  
"383 (CBSC_1,  
"384 (CBSC_1,  
"385 (CBSC_1,  
"386 (CBSC_1,  
"387 (BC_1,  
p_ad(11), bidir,  
p_ad(13), bidir,  
p_cbez(1), bidir,  
452,  
452,  
453,  
387,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
p_serrz,  
*,  
bidir,  
X,  
control,  
0)," &  
X,  
"388 (CBSC_1,  
"389 (CBSC_1,  
"390 (CBSC_1,  
"391 (CBSC_1,  
"392 (CBSC_1,  
"393 (BC_4,  
p_cbez(0), bidir,  
p_ad(9), bidir,  
453,  
452,  
452,  
452,  
452,  
0,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
p_ad(12), bidir,  
p_ad(14), bidir,  
p_ad(10), bidir,  
p_m66en, input,  
X,  
X,  
X,  
X)," &  
X,  
"394 (CBSC_1,  
"395 (CBSC_1,  
"396 (CBSC_1,  
"397 (CBSC_1,  
"398 (BC_4,  
p_ad(6),  
p_ad(4),  
p_ad(8),  
p_ad(7),  
p_clk,  
bidir,  
bidir,  
bidir,  
bidir,  
input,  
bidir,  
bidir,  
bidir,  
bidir,  
452,  
451,  
451,  
451,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
X,  
X)," &  
X,  
"399 (CBSC_1,  
"400 (CBSC_1,  
"401 (CBSC_1,  
"402 (CBSC_1,  
"403 (CBSC_1,  
"404 (BC_1,  
p_ad(2),  
p_ad(5),  
p_ad(3),  
p_ad(0),  
451,  
451,  
451,  
451,  
404,  
0,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
X,  
p_req64z, bidir,  
X,  
*,  
control,  
bidir,  
0)," &  
X,  
"405 (CBSC_1,  
"406 (CBSC_1,  
"407 (BC_1,  
p_ad(1),  
451,  
407,  
0,  
0,  
Z)," &  
Z)," &  
p_ack64z, bidir,  
X,  
*,  
control,  
0)," &  
X,  
"408 (CBSC_1,  
"409 (CBSC_1,  
"410 (CBSC_1,  
"411 (CBSC_1,  
"412 (BC_1,  
p_cbez(7), bidir,  
p_cbez(5), bidir,  
p_cbez(6), bidir,  
450,  
450,  
450,  
412,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
p_par64,  
*,  
bidir,  
X,  
control,  
0)," &  
X,  
"413 (CBSC_1,  
"414 (CBSC_1,  
"415 (CBSC_1,  
"416 (CBSC_1,  
p_cbez(4), bidir,  
p_ad(62), bidir,  
p_ad(63), bidir,  
p_ad(60), bidir,  
450,  
449,  
449,  
449,  
0,  
0,  
0,  
0,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
X,  
X,  
®
Intel 80303 and 80302 I/O Processors Specification Update  
29  
 
Documentation Changes  
Table 24-4. Intel® 80303 I/O Processor Boundary Scan Register Bit Order (Sheet 10 of 10)  
#
Cell Type  
Name  
Function Safe bit Control Signal  
Disable Value  
0,  
Disable Result  
"417 (CBSC_1,  
"418 (CBSC_1,  
"419 (CBSC_1,  
"420 (CBSC_1,  
"421 (CBSC_1,  
"422 (CBSC_1,  
"423 (CBSC_1,  
"424 (CBSC_1,  
"425 (CBSC_1,  
"426 (CBSC_1,  
"427 (CBSC_1,  
"428 (CBSC_1,  
"429 (CBSC_1,  
"430 (CBSC_1,  
"431 (CBSC_1,  
"432 (CBSC_1,  
"433 (CBSC_1,  
"434 (CBSC_1,  
"435 (CBSC_1,  
"436 (CBSC_1,  
"437 (CBSC_1,  
"438 (CBSC_1,  
"439 (CBSC_1,  
"440 (CBSC_1,  
"441 (CBSC_1,  
"442 (CBSC_1,  
"443 (CBSC_1,  
"444 (CBSC_1,  
"445 (CBSC_1,  
"446 (BC_1,  
p_ad(59), bidir,  
p_ad(61), bidir,  
p_ad(57), bidir,  
p_ad(58), bidir,  
p_ad(56), bidir,  
p_ad(55), bidir,  
p_ad(53), bidir,  
p_ad(52), bidir,  
p_ad(54), bidir,  
p_ad(51), bidir,  
p_ad(49), bidir,  
p_ad(50), bidir,  
p_ad(48), bidir,  
p_ad(46), bidir,  
p_ad(47), bidir,  
p_ad(44), bidir,  
p_ad(45), bidir,  
p_ad(43), bidir,  
p_ad(41), bidir,  
p_ad(42), bidir,  
p_ad(38), bidir,  
p_ad(37), bidir,  
p_ad(40), bidir,  
p_ad(34), bidir,  
p_ad(39), bidir,  
p_ad(35), bidir,  
p_ad(33), bidir,  
p_ad(32), bidir,  
p_ad(36), bidir,  
X,  
449,  
449,  
449,  
449,  
449,  
448,  
448,  
448,  
448,  
448,  
448,  
448,  
448,  
447,  
447,  
447,  
447,  
447,  
447,  
447,  
447,  
446,  
446,  
446,  
446,  
446,  
446,  
446,  
446,  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
Z)," &  
X,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
0,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
X,  
*,  
*,  
*,  
*,  
*,  
*,  
*,  
*,  
*,  
*,  
control,  
0)," &  
0)," &  
0)," &  
0)," &  
0)," &  
0)," &  
0)," &  
0)," &  
0)," &  
0)" ;  
"447 (BC_1,  
control,  
control,  
control,  
control,  
control,  
control,  
control,  
control,  
control,  
"448 (BC_1,  
"449 (BC_1,  
"450 (BC_1,  
"451 (BC_1,  
"452 (BC_1,  
"453 (BC_1,  
"454 (BC_1,  
"455 (BC_1,  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual.  
®
30  
Intel 80303 and 80302 I/O Processors Specification Update  
 
Documentation Changes  
9.  
Figure 25-1 on pg 25-1 has incorrect data  
The Internal bus in diagram shows 66 MHz bus speed. The actual bus speed is 100 MHz  
Problem:  
Workaround: Replace Figure 25-1 with the following:  
Figure 25-1. Intel® 80303 I/O Processor Clocking Regions Diagram  
Clock Region 3  
Clock Region 2  
Intel® i960® JN CPU 100 MHz  
16K I-Cache  
Memory  
Controller  
I2C  
Unit  
Application  
Accelerator  
4K D-Cache  
Bus Interface Unit  
800 MBs Internal Bus (100MHz/64-bit)  
Primary  
Secondary  
Address  
Translation  
Unit  
2 Channel  
DMA  
Controller  
I20  
Messaging  
Unit  
1 Channel  
DMA  
Controller  
Performance  
Monitoring  
Unit  
Address  
Translation  
Unit  
S_CLKOUT  
[5:0]  
R_CLKOUT  
R_CLKIN  
P_CLK  
PCI - to - PCI  
Bridge  
Secondary PCI Bus  
Secondary  
Primary PCI Bus  
6 Reg/Gnt Pairs  
PCI Arbiter  
Clock Region 1  
Clock Region 4  
A8053-01  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
10.  
Section 25.1.3 on page 25-2  
Problem:  
The third sentence of the first paragraph is incorrect. It states the maximum bus speed of the region  
is 66 MHz. It is actually 100 MHz.  
Workaround: Change the third sentence to the following:  
“It supports clock frequencies up to a maximum of 100 MHz.”  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
®
Intel 80303 and 80302 I/O Processors Specification Update  
31  
 
   
Documentation Changes  
11.  
Figure 25-2 on pg 25-2 did not print correctly  
Figure 25-2 on pg 25-2 did not print correctly.  
Problem:  
Workaround: Replace Figure 25-2 with the following:  
I_CLK  
SDQ(71:0)  
SDQ(71:0)  
DQ(71:0)  
DQ(71:0)  
P_CLK  
DCLKout  
DCLKin  
CLK(3:0)  
CLK(3:0)  
SDRAM  
DIMM0  
SDRAM  
DIMM1  
A4662-02  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual.  
12.  
Table 25-2 on page 25-3 did not print completely  
Problem:  
Table 25-2 on page 25-3 did not print completely  
Workaround: Replace Table 25-2 with the following:  
Input Clock  
Region/Clock  
Buffered/PLL P_M66EN  
S_M66EN  
Region 1: 1x P_CLK  
Region 2: 3x P_CLK  
Region 3: 3x P_CLK  
Region 4: 1x P_CLK  
Region 1: 1x P_CLK  
Region 2: 3/2x P_CLK  
Region 3: 3/2x P_CLK  
Region 4: 1x P_CLK  
Region 1: 1x P_CLK  
Region 2: 3/2x P_CLK  
Region 3: 3/2x P_CLK  
Region 4: 1/2x P_CLK  
Buffered  
PLL  
P_CLK = 33 MHz  
0
0
PLL  
Buffered  
Buffered  
PLL  
P_CLK = 66 MHz  
P_CLK = 66 MHz  
1
1
0
PLL  
Buffered  
Buffered  
PLL  
1
PLL  
Buffered  
NOTE: Combination of P_M66EN=0 and S_M66EN=1 is not supported by the Intel® 80303 I/O processor.  
When P_M66EN=0, the 80303 I/O processor forces S_M66EN=0 ensuring the unsupported condition  
never occurs.  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
®
32  
Intel 80303 and 80302 I/O Processors Specification Update  
 
   
Documentation Changes  
13.  
Section 1.2.2 on page 1-2 has incorrect data  
Problem:  
The second sentence of the first paragraph is incorrect. It states the Internal Bus operates at  
66 MHz. It is actually 100 MHz.  
Workaround: Change the second sentence to the following:  
“The Internal Bus operates at 100 MHz and is 64 bits wide.”  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
14.  
Figure 12-2 on page 12-10 has incorrect data  
Problem:  
The Internal bus in diagram shows 66 MHz bus speed. The actual bus speed is 100 MHz  
Workaround: Replace Figure 12-2 with the following:  
Figure 12-2. Core Processor/BIU Interface Block Diagram  
100 MHz  
Intel i960  
Core Processor  
100 MHz Intel i960 Processor Local Bus  
Bus Interface  
Unit  
®
®
100 MHz Internal Bus (IB)  
A6414-02  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
15.  
Section 19.1 on page 19-1 has incorrect data  
Problem:  
The last bullet incorrectly states, '64-bit/66MHz PCI and 80303 I/O processor internal bus  
interface.' The internal bus on the 80303 I/O processor is 100 MHz.  
Workaround: Change the last bullet to the following: '64-bit/66MHz PCI and 64-bit/100 MHz internal bus  
interface.'  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
16.  
Table 14-46 on page 14-109 has missing data  
Problem:  
Table 14-46 is missing the bit description for bit 12. Add the following:  
Bit  
Default  
Description  
Varies with  
inverse of the  
Special Downstream Window Enable - When set, a special downstream  
external state of memory window which includes the addresses FEC0_0000h through  
RAD[2]/SPME FECF_FFFFh is opened. This window provides support for an alternate address  
12  
M# at Primary  
mechanism to a Hot-Plug Controller.  
PCI bus reset  
Workaround: When clear, the Special Downstream Memory window is closed.  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
®
Intel 80303 and 80302 I/O Processors Specification Update  
33  
 
       
Documentation Changes  
17.  
Section 13.2.4.3 on page 13-30 has incorrect data  
Problem:  
The first sentence incorrectly states, 'If enabled'. ECC is always enabled on the 80303 I/O  
processor, it is not optional.  
Workaround: Remove 'If enabled'.  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
18.  
Figure 15-3 on page 15-7 has missing text  
Problem:  
The figure shows 'se_Register + Value of Limit_Register'. It should be 'Base_Register + Value of  
Limit_Register'.  
Workaround: Replace Figure 15-3 with the following:  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
19.  
Section 15.7.39 on page 15-100 has incorrect data  
Problem:  
The last paragraph is incorrect. It states, 'Note that bits 4:0, bits 12:11, bit 9 and bit 7 can result in  
an NMI# interrupt driven to the i960 core processor.' Bit 12 is a reserved bit, so it should be  
removed from this sentence.  
Workaround: Change the last paragraph to the following: 'Note that bits 4:0, 11, 9 and 7 can result in an NMI#  
interrupt driven to the i960 core processor.'  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
®
34  
Intel 80303 and 80302 I/O Processors Specification Update  
 
     
Documentation Changes  
20.  
Table 8-17 on page 8-38 has incorrect data  
The bit locations for External Interrupt 5 are incorrectly shown as bits '9:4'. It should be '7:4'.  
Problem:  
Workaround: Replace Table 8-17 with the following:  
31  
28  
24  
20  
16  
12  
8
4
0
IOP  
Attributes  
rv rv rv rv rv rv rv rv rv rv rv rv rv rv rv rv rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw  
PCI  
Attributes  
na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na  
Intel® i960® Core internal bus address  
FF00 8524H  
Attribute Legend:  
RV = Reserved  
PR = Preserved  
RS = Read/Set  
RW = Read/Write  
RC = Read Clear  
RO = Read Only  
NA= Not Accessible  
IMAP1  
Bit  
Default  
Description  
31:16  
15:12  
11:8  
7:4  
Reserved (initialize to 0)  
External Interrupt 7 Field - IMAP1.x7  
Default  
Value loaded  
from image External Interrupt 6 Field - IMAP1.x6  
in Control  
External Interrupt 5 Field - IMAP1.x5  
Table  
3:0  
External Interrupt 4 Field - IMAP1.x4  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
21.  
Section 11.2.8 on page 11-5 has incorrect data  
Problem:  
The last sentence in the third paragraph states, 'Specifications for a cold and warm reset can be  
found in the 80960RM I/O Processor Data Sheet and the 80960RN I/O Processor Data Sheet.'  
This sentence should be removed, it does not pertain to the 80303 I/O processor.  
Workaround: Change text to the following: 'The 80303 I/O processor complies with the PCI Local Bus  
Specification, Revision 2.2. Reset parameters are defined in this specification.'  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
22.  
Section 13.2.3.1 on page 13-13 has incorrect data  
Problem:  
The first sentence states, 'The MCU supports an ECC only memory subsystem ranging from 32 to  
528 Mbytes.' It should be 512 Mbytes, not 528 Mbytes.  
Workaround: Change this sentence to the following: 'The MCU supports an ECC only memory subsystem  
ranging from 32 to 512 Mbytes.'  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
23.  
Table 13-4 on page 13-9 has incorrect data  
Problem:  
Table 13-4 lists incorrect wait states for the flash bus.  
Workaround: Replace Table 13-4 with the following:  
Flash Speed  
Address-to-Data Wait States  
Recovery Wait States  
<= 55 ns  
<= 115 ns  
<= 175 ns  
8
4
4
4
12  
20  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
®
Intel 80303 and 80302 I/O Processors Specification Update  
35  
 
       
Documentation Changes  
24.  
Table 8-15 on page 8-36 needs clarification  
ICON.10, Global Interrupt Enable bit, does not state what bit value enables interrupts.  
Problem:  
Workaround: Add this sentence to the bit description, 'A '0' will globally enable interrupts, and a '1' globally  
disables interrupts.'  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
25.  
Table 13-13 on page 13-30 has incorrect data  
Problem:  
Syndrome Decoding Error Types and Symptoms are incorrectly stated.  
Workaround: Replace Table 13-13 with the following and, add the adjacent paragraph with “new” Figure 13-16:  
Table 13-13. Syndrome Decoding  
Error Type  
None  
Symptom  
The syndrome is 0000 0000.  
Single-Bit  
Multi-Bit  
Use the H-Matrix in Figure 13-17 to determine which bit the MCU will invert to fix the error.  
If the Syndrome does not match an 8-bit value in the H-matrix, the error is uncorrectable  
Figure 13-16 shows how the data flows through the ECC hardware for a read transaction.  
Figure 13-16. ECC Read Data Flow  
Main  
ECC  
Memory  
Memory  
MCU  
Calculate ECC  
with G-matrix  
Calculate Syndrome by  
Comparing ECC w/Check Bits  
Data Corrector  
(single-bit error)  
H-matrix  
Look-up Table  
Error Type/Location  
Data to Internal Bus  
A8160-01  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
®
36  
Intel 80303 and 80302 I/O Processors Specification Update  
 
   
Documentation Changes  
26.  
Section 13.2.4.3, First Paragraph after Table 13-13 has Incorrect Data  
Problem:  
First sentence incorrectly states error types for corrected Table 13-13:  
...If decoding the syndrome indicates a double-bit or nibble error...  
Should read as follows:  
...”When” decoding the syndrome indicates a “multi”-bit error...  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
27.  
Section 13.2.4.3, First Paragraph after CurrentFigure 13-16. H-Matrix has  
Incorrect Data  
Problem:  
First sentence incorrectly states error types for corrected Table 13-13:  
...If error reporting is enabled in the ECCR and the MCU detects a nibble, single-bit, or double-bit  
error...  
Should read as follows:  
...”When” error reporting is enabled in the ECCR and the MCU detects a single-bit or “multi”-bit  
error...  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
28.  
Section 11.3.1.5 FAIL# Code  
®
®
Problem:  
The verbiage in this section is residual from the Intel i960 I/O Processor Developers Manual,  
where the internal bus was accessible from the outside. The internal bus is not accessible from the  
outside for i960 RM/RN I/O processor. Since the customer cannot “see” the internal bus, whatever  
is on it is not useful and is only confusing. Therefore, this section has been removed.  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
29.  
Section 13.5 Reset Conditions has Incorrect Data  
Problem:  
The last sentence in the first paragraph incorrectly states:  
Reads issued prior to a write to the same address results in an ECC error (if enabled) and is not  
recommended.  
This should state:  
Reads issued prior to a write to the same address results in an ECC error and are not recommended.  
30.  
Section 13.2.4.2, First Sentence has Incorrect Data  
Problem:  
On page 13-28, the first sentence reads: “If the internal bus master writes less than the data bus  
width programmed in the SDCR, then the MCU translates the write transaction into a  
read-modify-write transaction.” Please remove “programmed in the SDCR” from the sentence.  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
31.  
Section 13.6.2, Second Sentence has Incorrect Data  
On page 13-46, the second sentence reads: “The SDCR specifies the drive strength for the MCU  
pins, the bus width, and power failure handling.” Please “remove, the bus width, and power failure  
handling” from the sentence. It should read “The SDCR specifies the drive strength for the MCU  
pins.”  
Affected Docs: Intel® 80303 I/O Processor Developers Manual  
®
Intel 80303 and 80302 I/O Processors Specification Update  
37  
 
           
Documentation Changes  
32.  
Section 4.5.2 on page 50 is only correct for A-0 and A-1 steppings  
Problem:  
The second sentence in Note 7 states, ‘S_REQ64# is deasserted one P_CLK after the deassertion of  
S_RST#’. This statement is not correct for the A-2 stepping of the 80303 and 80302 I/O  
processors.  
Workaround: This statement is only correct for the A-0 and A-1 steppings of the 80303. See Specification  
Clarification #6 for A-2 stepping functionality.  
®
Affected Docs: Intel 80303 I/O Processor Datasheet  
33.  
Section 17.5.1 on page 17-12 is only correct for A-0 and A-1 steppings  
Problem:  
The last sentence states, ‘S_REQ64# remains valid for one clock (P_CLK) after S_RST#  
deasserts’. This statement is not correct for the A-2 stepping of the 80303 and 80302 I/O  
processors.  
Workaround: This statement is only correct for the A-0 and A-1 steppings of the 80303. See Specification  
Clarification #6 for A-2 stepping functionality.  
®
Affected Docs: Intel 80303 I/O Processor Developers Manual  
®
38  
Intel 80303 and 80302 I/O Processors Specification Update  
 
   

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