Toshiba T1200 - 3.5 Memory Test

3.5 MBMORY TEST
Subtest 01 RAM constant data (Execution time: 58 seconds)
This test writes constant data to Memory, and then
reads and compares them with the original data.
The constant data are "FFFFH", "AAAAH", "5555H",
"OlOlH" and "OOOOH".
Subtest 02 RAM address pattern data
seconds)
(Execution time: 17
This test makes the segment address and offset
address by XORing, and then writes the address
pattern data and reads and compares them with the
original data.
Subtest 03 RAM refresh (Execution time: 34 seconds)
This test writes constant data in 256 bytes length
to Memory, and then reads and compares it with the
or ig inal data. The constant data are "AAAAH
n
and
II 5555H
n
• A certain interval time wi 11 be taken
between the write and the read operations.
Subtest 04 Expansion bus (Execution time: 3 seconds)
Rote: As this test requires a special tool to be executed,
it can not be carried out here.
Subtest 05 Backup RAM (Execution time: 1 second)
This test writes data (FFH, AAH, 55H, OOH) to the
memory address (FOOOOH to F07FFH); then read it the
data out and compares it to the original data.
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