Intel 460GX 6.10Error Conditions, 6.10.1Table of Errors, Figure 6-2.SDC Error Data Flow

Data Integrity and Error Handling

Figure 6-2. SDC Error Data Flow

From Processor To Processor

1b/16b parity

To

SAC

							Check parity, if bad
		Correct if 1x; if 2x, then write					poison ECC of chunk.
							Retire ITID and report error.
		into DB with bad parity on chunk
		that is bad. Set status. No reporting.
Check and flag
status;
regenerate
new parity, if	1b/8b parity		S	D		Data Buffer
incoming is bad
then generate new
parity as bad.
On data to SAC
send with bad
parity if parity							Correct if 1x;
if data is bad in					Check, if bad		if 2x write to
buffer. Report					poison ECC of		DB with bad
							parity, flag
error.					bad chunk. Retire
							status. Set S
					ITID and report
							or D bit if error
					error.

6.10Error Conditions

6.10.1Table of Errors

Table 6-1is a list of possible errors found in the system. The table shows the error and the system action. It also shows the information that is captured on any failure. The captured info is sticky through reset and can be read through configuration accesses. If the system action is conditional, then the qualifier column shows what the action is conditional on. Note that for the BINIT#, XBINIT#, and the interrupts there is a driver enable. If the driver is disabled, then these signals won’t be active, even if it says Unconditional in the table.

Intel® 460GX Chipset Software Developer’s Manual 6-15