Technical data

6-46 Interactive Diagnostics Environment (IDE)
Table 6-10 lists and describes the available MC3 diagnostic commands.
Test Function Description
mem1 Read the MC3 configuration
registers (very fast test)
The mem1 test is very similar to
the mem14 test, which is the
POD DMC command.
This tests reads (probes) the
following MC3 configuration
registers:
00 - Bank enable
01 - BoardType
02 - RevLevel
03 - AccessControl:
endianness subBlockOrder
ebus=64bitsOrNot
04 - MemoryErrorInterrupt
05 - EBUSErrorInterrupt
07 - BIST result
07 - DRSC timeout
0a - LeafControlEnable
Reads leaf registers 10-24,
30-33 (leaf 0), 50-64, and 70-73
(leaf 1)
mem2 Memory sockets connection test
(ported from the IP17 mem1 test;
a very fast test)
The memory sockets
connection test writes
patterns to the first 2 KB of
each configured leaf and then
reads them back. By writing 2
KB, all simms are ensured of
being written to regardless of
the interleaving factor
specified.
If the pattern read back does
not match, the socket is
assumed to have a connection
problem.
mem3 Walking address test
(ported from the IP17 mem1 test;
a very fast test)
This is a traditional test that
checks for shorts and opens
on the address lines. Address
lines that are greater or equal
to the most significant address
lines of the memory bounds
are not tested. Testing is done
by byte read/writes from
first_address up to
last_address.
Table 6-10 MC3 Tests