Intel 460GX Software Developer’s Manual page 116

Data Integrity and Error Handling
Table 6-1. Error Cases (Cont'd)
Chip
Error
Detecting
'Accept' Underflow SDC
Internal SDC Error
Data Buffer Ram SDC
Parity Error
GXB ERRORS
AGP Request GXB
Queue Overflow
Use of Pipe with GXB
Sideband Enabled
AGP Address [ GXB
..36] not = 0
Unsupported GXB
command using
AGP semantics
PCI IB Read Que GXB
Data Parity Error
PCI OB Write Que GXB
Data Parity Error
Discard timer GXB
expiration
SERR# Observed GXB
PERR# Observed GXB
PCI Parity Error on GXB
Address from Card
PCI Parity Error on GXB
Data from Card
Master Abort on GXB
Read by GXB
Master Abort on GXB
Write done by GXB
Master Abort on GXB
Configuration
Cycle
Target Abort on GXB
Transaction
Mastered by GXB
GART Entry Invalid GXB
6-18
System
Action
Unconditional BINIT# SDC_FERR[AEx],
FERR_SAC[SFE]
Unconditional Interrupt SDC_FERR[RPE],
FERR_SAC[SNE]
Unconditional XBINIT# FERR_AGP
Unconditional XBINIT# FERR_AGP
Unconditional XBINIT# FERR_AGP
Unconditional XBINIT# FERR_AGP
Conditional XINTR# FERR_PCI
Conditional XBINIT#
Conditional XINTR# FERR_PCI
Conditional XBINIT#
Unconditional XINTR# FERR_PCI
SERR# if SERRE set
Unconditional XINTR# FERR_PCI
Unconditional XINTR# FERR_PCI,
possibly PCISTS[DPE]
Let card master abort; PCISTS[PE],
SERR# and XINTR# if FERR_PCI,
SERRE set; if SERRE possibly PCISTS[SSE]
not set then neither
SERR# nor XINTR#
driven.
Data placed into queue PCISTS[PE],
with bad parity. PCISTS[DPE] if PERRE
Conditional PERR#
1DW: Return all 1's PCISTS [RMA],
> 1DW: Hard Fail (HF) FERR_PCI
completion.
1 DW: normal PCISTS [RMA],
completion FERR_PCI
>1 DW: Hard Fail (HF)
completion.
Normal completion PCISTS [RMA]
(FERR_PCI is not set)
Return HF to either read PCISTS [RTA],
or write. FERR_PCI
Unconditional XINTR#, FERR_GART
Conditional XBINIT#.
(NOTE: if XBINIT# is
driven, then it is not
required to drive
XINTR#)
Status
Register Register
Nothing
Nothing
Nothing
Nothing
Nothing
Nothing
Nothing
Nothing
Nothing
Nothing
Nothing
PAC_ERR
PD_ERR, PAC_ERR
Nothing
Nothing
Nothing
Nothing
Nothing
Intel® 460GX Chipset Software Developer's Manual
Log
Qualifier
TXDERR
_INTE,
TXDERR
_BINITE
TXDERR
_INTE,
TXDERR
_BINITE
SERRE
SERRE
PCICM
[PERRE]
GARTINV
_BINITE