Fujitsu MHM2100AT - Mobile 10 GB Hard Drive Product Manual page 129

Interface
When device 1 is not present:
The device 0 posts only the results of its own self-diagnosis.
•
The device 0 clears the BSY bit of the Status register, and generates an
•
interrupt.
Table 5.6 lists the diagnostic code written in the Error register which is 8-bit code.
If the device 1 fails the self-diagnosis, the device 0 "ORs" X'80' with its own
status and sets that code to the Error register.
attention: The device responds normally to this command without executing
At command issuance (I/O registers setting contents)
1F7 (CM)
H
1F6 (DH)
H
1F5 (CH)
H
1F4 (CL)
H
1F3 (SN)
H
1F2 (SC)
H
1F1 (FR)
H
5-52
Table 5.6 Diagnostic code
Code Result of diagnostic
X'01' No error detected.
X'03' Data buffer compare error
X'05' ROM sum check error
X'8x' Failure of device 1
internal diagnostic test.
1 0 0
x x x
xx
xx
xx
xx
xx
1 0 0 0
DV Head No. /LBA [MSB]
0
C141-E104-03EN