Fujitsu MHX2300BT Product Manual page 166

Interface
At command issuance (Shadow Block Registers setting contents)
CM
DH
CH
CL
SN
SC
FR
At command completion (Shadow Block Registers contents to be read)
ST
DH
CH
CL
SN
SC
ER
*1 If the command is completed normally, the number of remaining
sectors is set in this field.
If the command is terminated because of an error, the number of
sectors for which data has not been transferred is set in the field.
5-92
1 1 0 0
x L x x
Start cylinder No. [MSB] / LBA
Start cylinder No. [LSB] / LBA
Start sector No.
Transfer sector count
xx
Status information
x L x x
End cylinder No. [MSB] / LBA
End cylinder No. [LSB] / LBA
End sector No.
(*1)
Error information
0 1 0 0
HD No. / LBA
/ LBA [LSB]
HD No. / LBA
/ LBA [LSB]
C141-E254