Fujitsu MHD2032AT, MHC2032AT, MHD2021AT, MHC2040AT manual 1F7 HCM 1F6 HDH

Interface

The data stored in the buffer, and CRC code and ECC bytes are written to the data field of the corresponding sector(s). Upon the completion of the command execution, the command block registers contain the cylinder, head, and sector addresses of the last sector written.

If an error occurs during multiple sector write operation, the write operation is terminated at the sector where the error occured. Command block registers contain the cylinder, the head, the sector addresses (in the CHS mode) or the logical block address (in the LBA mode) of the sector where the error occurred. Then the host can read the command block registers to determine what error has occurred and on which sector the error has occurred.

At command issuance (I/O registers setting contents)

1F7H(CM)	0	0	1	1	0	0	0	R
1F6H(DH)	×	L	×	DV	Start head No. /LBA [MSB]
1F5H(CH)	Start cylinder No. [MSB] / LBA
1F4H(CL)	Start cylinder No. [LSB] / LBA
1F3H(SN)	Start sector No. / LBA [LSB]
1F2H(SC)	Transfer sector count
1F1H(FR)	xx

R= 0 →with Retry R = 1 →without Retry

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

1F7H(ST)	Status information
1F6H(DH)	×	L	×	DV	End head No. /LBA [MSB]
1F5H(CH)	End cylinder No. [MSB] / LBA
1F4H(CL)	End cylinder No. [LSB] / LBA
1F3H(SN)	End sector No. / LBA [LSB]
1F2H(SC)	00 (*1)
1F1H(ER)	Error information

*1 If the command is terminated due to an error, the remaining number of sectors of which data was not transferred is set in this register.

5-24 C141-E050-02EN