Error Conditions; Table Of Errors; Sdc Error Data Flow - Intel 460GX Software Developer’s Manual

Figure 6-2. SDC Error Data Flow
1b/16b parity
To
SAC
6.10

Error Conditions

6.10.1

Table of Errors

Table 6-1
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
Check and flag
status;
regenerate
new parity, if
1b/8b parity
incoming is bad
then generate new
parity as bad.
On data to SAC
send with bad
parity if parity
if data is bad in
buffer. Report
error.
is a list of possible errors found in the system. The table shows the error and the system
From Processor
Correct if 1x; if 2x, then write
into DB with bad parity on chunk
that is bad. Set status. No reporting.
Data Buffer
S D
Check, if bad
poison ECC of
bad chunk. Retire
ITID and report
error.
Data Integrity and Error Handling
To Processor
Check parity, if bad
poison ECC of chunk.
Retire ITID and report error.
Correct if 1x;
if 2x write to
DB with bad
parity, flag
status. Set S
or D bit if error
6-15