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5.3 Host Commands
C141-E050-02EN 5-43
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 excuting
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)
× × ×
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
At command completion (I/O registers contents to be read)
1F7
H
(ST)
Status information
1F6
H
(DH)
× × ×
DV
Head No. /LBA
[
MSB]
1F5
H
(CH)
1F4
H
(CL)
1F3
H
(SN)
1F2
H
(SC)
1F1
H
(ER)
xx
xx
01
H
(*1)
01
H
Diagnostic code
*1 This register indicates X’00’ in the LBA mode.
(17) READ LONG (X’22’ or X’23’)
This command operates similarly to the READ SECTOR(S) command except that
the device transfers the data in the requested sector and the ECC bytes to the host
system. The ECC error correction is not performed for this command. This