Technical data

L2CACHE - Level 2 Cache Tests
http://www.motorola.com/computer/literature 3-57
3
ENUPD - Enable Updating
Command Input
PPC1-Diag>l2cache enupd
Description
This test performs a write/read test on the L2 Cache. The main objective
of this test is to exercise the L2 Cache with Cache Updating enabled. The
test flow is as follows:
Turn on the cache with WriteBack. Write an incrementing pattern to cache
original region. Verify the incrementing pattern. Turn off cache. Write a
decrementing pattern to original memory region. Turn on the cache with
WriteBack and enable updating. Write decrementing pattern to displacing
memory region. Verify the incrementing pattern from the original region.
Response/Messages
After the command has been issued, the following line is printed:
L2CACHE ENUPD: L2-Cache Enable Updating... Running --->
If all parts of the test are completed correctly, then the test passes:
L2CACHE ENUPD: L2-Cache Enable Updating... Running ---> PASSED
If any part of the test fails, then the display appears as follows:
L2CACHE ENUPD: L2-Cache Enable Updating... Running ---> FAILED
L2CACHE/ENUPD Test Failure Data:
(error message)
Refer to the section L2CACHE Error Messages for a list of the error
messages and their meaning.