Read Long (X'22' Or X'23') - Fujitsu MHT2080BH Product Manual

(3)

READ LONG (X'22' or X'23')

This command operates similarly to the READ SECTOR(S) command except that
the device transfers the data in the requested sector and the ECC bytes to the host
system. The ECC error correction is not performed for this command. This command
is used for checking ECC function by combining with the WRITE LONG command.
The READ LONG command supports only single sector operation.
Number of ECC bytes to be transferred is fixed to 4 bytes and cannot be changed
by the SET FEATURES command.
Error reporting conditions
(1) A specified address exceeds the range where read operations are allowed
(ST = 51h, ER = 10h).
(2) A value other than 01h is specified in the SC field (ST = 51h, ER = 04h).
(3) The sync byte indicating the beginning of a sector was not found
(ST = 51h, ER = 01h).
(4) A SATA communication error occurred (ST = 51h, ER = 0Ch).
(5) An error other than the above errors occurred (ST = 51h, ER = 04h).
At command issuance (Shadow Block Registers setting contents)
CM
DH
CH
CL
SN
SC
FR
(R: Retry)
At command completion (Shadow Block Registers contents to be read)
ST
DH
CH
CL
SN
SC
ER
C141-E203-01EN
0 0 1 0
x L x x
Cylinder No. [MSB] / LBA
Cylinder No. [LSB] / LBA
Sector No.
01
xx
Status information
x L x x
Cylinder No. [MSB] / LBA
Cylinder No. [LSB] / LBA
Sector No.
xx
Error information
5.3 Host Commands
0 0 1 R
HD No. /LBA
/ LBA [LSB]
HD No. /LBA
/ LBA [LSB]
5-29