M2488 PRODUCT GUIDE
MTU DIAGNOSTIC SPECIFICATIONS
April 1997
CG00000-011503 REV. A
H-3
H-4
MTU DIAG PARAMETER
H-4.1
DIAG activation parameter
The total data requirement for the MTU DIAG activation is 480 bytes.
H-4.2
Explanation
The parameter for the DIAG activation is composed of 16 groups. Each group requires 30 bytes.
After the DIAG test of group 1 has been completed, the test of group 2 is executed and so on. If data
0xff or 0x0C is specified for the DIAG command code, the DIAGs of subsequent groups are not exe-
cuted and all DIAGs are terminated. If an error is detected during a DIAG execution, that test is ter-
minated.
struct diag parm {
unsigned char diag command;
unsigned char diag parameter [9];
unsigned long execute time;
unsigned long stop time;
unsigned long execute count;
unsigned char reserve [8]
} diag input parm [16];
DIAG command code
:
Specifies the command code of the DIAG to be executed.
DIAG parameter 1 to 9
:
Selects the mode according to the DIAG to be executed.
COMBINATION test
Combination test
FWD READ
Forward read test
CMD CD : 0x01
BWD READ
BACKWARD READ test.
CMD CD : 0x02
WRITE
Write test.
CMD CD : 0x03
D.S.E
D.S.E.test
CMD CD : 0x04
LOCATE
Locating
CMD CD : 0x05
REWIND
Rewinding to wrap1-BOT
CMD CD : 0x06
LOAD
Load
CMD CD : 0x07
UNLOAD
Unload
CMD CD : 0x08
EJECT
Eject
CMD CD : 0x80
TP PATH
tape path test
CMD CD : 0x0B
REPEAT
Set next execution group and
repeat counter.
CMD CD : 0x0A
RUNNING
END TEST.
CMD CD : 0x0C or 0xFF
ERROR RESET
CMD CD : 0x70 or 0xF0
diag_parameter 1
------
For the read/write DIAG, set the operation mode.
------
For the locate DIAG, specify a sector.
diag_parameter 2
------
For the read/write DIAG, specify a test wrap.
------
For the load/unload DIAG, specify “LOADER“ or
“THREADER”.
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