Fujitsu MHC2040AT, MHC2032AT, MHD2021AT, MHD2032AT manual Write Verify X’3C’

5.3 Host Commands

A host system can select the following transfer mode using the SET FEATURES command.

1)Single word DMA transfer mode 0 to 2

2)Multiword DMA transfer mode 0 to 2

3)Ultra DMA transfer mode 0 to 2

At command issuance (I/O registers setting contents)

1F7H(CM)	1	1	0	0	1	0	1	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.

(8) WRITE VERIFY (X’3C’)

This command operates similarly to the WRITE SECTOR(S) command except that the device verifies each sector immediately after being written. The verify operation is a read and check for data errors without data transfer. Any error that is detected during the verify operation is posted.

C141-E050-02EN 5-27