Service manual

6.9 Memory Self-Test
The <REFERENCE>(xma2) performs an initialization and
self-test sequence on power-up or when the sequence is
requested by a console command. During self-test the array
chip is initialized, all memory locations are tested, and the
control and status registers are initialized.
Example 6–2: MS65A Memory Module Results in Self-Test
#123456789 0123456789 0123456789 01234567#
F E D C B A 9 8 7 6 5 4 3 2 1 0 NODE #
A A . . M M M M . . . P P P TYP
1
+ + . . - + + + . . . + + + STF
2
. . . . . . . . . . . E E B BPD
. . . . . . . . . . . + + + ETF
. . . . . . . . . . . E E B BPD
. . . . C1 B1 A2 A1 . . . . . . ILV
3
. . . . 64 64 64 64 . . . . . . 256Mb
4
ROM0 = V3.00 ROM1 = V3.00 EEPROM = 2.03/3.00 SN = SGO1234567
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6–16 VAX 6000 Models 300 and 400 Service Manual