Fujitsu MHW2120BK Maintenance Manual page 173

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 terminated due to an error, the remaining
number of sectors of which data was not transferred is set in this
register.
C141-E261
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
Start cylinder No. [MSB] / LBA
Start cylinder No. [LSB] / LBA
Start sector No.
00 (*1)
Error information
5.3 Host Commands
1 0 0 R
HD No. / LBA
/ LBA [LSB]
HD No. / LBA
/ LBA [LSB]
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