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20 Intel
®
80303 and 80302 I/O Processors Specification Update
6. Incorrect Vendor ID in ATU register
Problem: The value for the Vendor ID register (ATUVID) is incorrect.
Workaround: Replace Table 15-28 on page 15-60 with the following table:
Affected Docs: Intel
®
80303 I/O Processor Developer’s 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 Developer’s Manual.
Bit Default Description
15:00 8086H
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.
PCI
IOP
Attributes
Attributes
15 12 8 4 0
rw
ro
rw
ro
rw
ro
rw
ro
rw
ro
rw
ro
rw
ro
rw
ro
rw
ro
rw
ro
rw
ro
rw
ro
rw
ro
rw
ro
rw
ro
rw
ro
Attribute Legend:
RV = Reserved
PR = Preserved
RS = Read/Set
RW = Read/Write
RC = Read Clear
RO = Read Only
NA = Not Accessible
Intel
®
i960
®
Core Local Bus Address
1200H
PCI Configuration Address Offset
00H - 01H