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Register Description
D15343-003 103
4.11.4 PCISTS – PCI Status Register (Device #2)
PCISTS is a 16-bit status register that reports the occurrence of a PCI compliant master abort and
PCI compliant target abort. PCISTS also indicates the DEVSEL# timing that has been set by the
IGD.
4.11.5 RID – Revision Identification Register (Device #2)
This register contains the revision number of the IGD. These bits are Read Only and Writes to this
register have no effect.
Address Offset:
Default Value:
Access:
Size:
06-07h
0090h
Read Only
16 bits
Bit Description
15 Detected Parity Error (DPE): Since the IGD does not detect parity, this bit is always set to 0.
14 Signaled System Error (SSE) – RO
13 Received Master Abort Status (RMAS) – RO
12 Received Target Abort Status (RTAS) – RO
11 Signaled Target Abort Status (STAS) – RO
10:9 DEVSEL# Timing (DEVT) – RO
8 Data Parity Detected (DPD) – RO
7 Fast Back-to-Back (FB2B) – RO
6 User Defined Format (UDF) – RO
5 66-MHz PCI Capable (66C) – RO
4 CAP LIST: This bit is set to 1 to indicate that the register at 34h provides an offset into the
Function’s PCI Configuration Space containing a pointer to the location of the first item in the list.
3:0 Reserved
Address Offset:
Default Value:
Access:
Size:
08h
02h
Read Only
8 bits
Bit Description
7:0 Revision Identification Number: This is an 8-bit value that indicates the revision identification
number for the GMCH.