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Chapter 8 137
io3000
io3000 classes and subtests
235 Prefetch
memory
march C-
Verify writes and reads to all of prefetch
memory using a bitwise march C-
algorithm. The default option does a
shortened version of the march C-
algorithm by using a limited pattern set.
The march C- complete enable can be set
to do a full march C- test. The test time
increases by a factor of approximately
four. The fault coverage for full march C-
increases from approximately 99% to
100% of targeted faults.
240 Prefetch
memory
pattern
Writes and reads random pattern to all of
prefetch memory. The random pattern
can be modified by changing the random
seed option. Also, a user-specified pattern
can be used by setting the user pattern
options.
245 Prefetch
memory
parity
detection
Verifies the ability of SAGA to detect
parity errors on reads from prefetch
memory. This test uses the FPR bit (force
parity error to prefetch SRAM) to write a
parity error into context SRAM. Then the
bad parity is read out, causing a parity
error to be detected and logged in the
SAGA’s Error Cause CSR.
Subtest Name Description