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At command issuance (Shadow Block Registers setting contents)
CM 1 1 0 0 1 0 1 R
DH x L x x HD No. / LBA
CL
SN
FR
Start cylinder No. [MSB] / LBA
Start sector No. / LBA [LSB]
Transfer sector count
CH
SC
Start cylinder No. [LSB] / LBA
xx
At command completion (Shadow Block Registers contents to be read)
ST Status information
DH x L HD No. / LBA x x
CL
SN
SC
ER
Start cylinder No. [MSB] / LBA
Start cylinder No. [LSB] / LBA
Start sector No. / LBA [LSB]
00 (*1)
Error information
CH
*1 If the command was terminated because of an error, the number of
sectors for which data has not been written is set in this field.
5-100 C141-E249