Subtest 05 Memory module
NOTE:
To execute this subtest,
an
optional memory
card
must be installed
in the computer.
This subtest functions the same as Subtest 04, except it is used for testing an
optional memory card. Memory module capacity is 2, 4, 8, and 16 MBs.
After selecting
Subtest 05, the following message will appear:
Extended
memory
size
(1:2
MB,2:4
MB,3:8
MB,4:16
MB)
?
Select
the
number that corresponds
to
the memory card installed in the T 1900/
T1900C.
Subtest 06
Backup Memory
This subtest writes constant data
to
memory from address C8000h
to
CFFFFh,
then reads new data and compares the results with
the
original data.
The constant data is
OOOOh,
5555h, AAAAh, and FFFFh.
Subtest 07 Hard-RAM
Subtest 08
This subtest writes a
word
unit
of
constant data
to
memory (address
EOOOOh
to
E7FFFh), then reads the new data and compares the results with
the
original
data.
The constant data is
0000h, 5555h, AAAAh, and FFFFh.
This subtest also executes the paging test for page data.
Cache memory
To
test the cache memory, a pass-through write-read comparison
of'5A'
data
is run repeatedly
to
test area
('7000':'Program'
size
to
'7000':=7FFF' (32
KB»
to
check
the
hit-miss ratio (onloffstatus). One test takes 3 seconds.
Number
of
miss hit < Number
of
hit
~
OK
Number
of
miss hit
~
Number
of
hit
~
Fail
3-11
To Next Page
Loading...
