FUJITSU DISK DRIVES MHM215OAT User Manual
Page 129

Interface
5-52
C141-E104-02EN
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.
Table 5.6 Diagnostic code
Code
Result of diagnostic
X’01’
X’03’
X’05’
X’8x’
No error detected.
Data buffer compare error
ROM sum check error
Failure of device 1
attention: The device responds normally to this command without executing
internal diagnostic test.
At command issuance (I/O registers setting contents)
1F7
H
(CM)
1
0
0
1
0
0
0
0
1F6
H
(DH)
x
x
x
DV
Head No. /LBA
[
MSB]
1F5
H
(CH)
1F4
H
(CL)
1F3
H
(SN)
1F2
H
(SC)
1F1
H
(FR)
xx
xx
xx
xx
xx