Fujitsu MHC2040AT, MHC2032AT, MHD2021AT, MHD2032AT manual Diagnostic code

5.3 Host Commands

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

attention: The device responds normally to this command without excuting internal diagnostic test.

At command issuance (I/O registers setting contents)

1F7H(CM)	1	0	0	1	0	0	0	0
1F6H(DH)	×	×	×	DV	Head No. /LBA [MSB]
1F5H(CH)	xx
1F4H(CL)	xx
1F3H(SN)	xx
1F2H(SC)	xx
1F1H(FR)	xx

At command completion (I/O registers contents to be read)

1F7H(ST)	Status information
1F6H(DH)	×	×	×	DV	Head No. /LBA [MSB]
1F5H(CH)	xx
1F4H(CL)	xx
1F3H(SN)	01H (*1)
1F2H(SC)	01H
1F1H(ER)	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

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