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5.3 Host Commands
At command issuance (I/O registers setting contents)
1F7
H
(CM) 1 1 1 1 1 0 0 1
1F6
H
(DH) x L x DV Max head/LBA [MSB]
1F5
H
(CH) Max. cylinder [MSB]/Max. LBA
1F4
H
(CL) Max. cylinder [LSB]/Max. LBA
1F3
H
(SN) Max. sector/Max. LBA [LSB]
1F2
H
(SC) xx VV
1F1
H
(FR) xx
At command completion (I/O registers contents to be read)
1F7
H
(ST) Status information
1F6
H
(DH) x x x DV Max head/LBA [MSB]
1F5
H
(CH) Max. cylinder [MSB]/Max. LBA
1F4
H
(CL) Max. cylinder [LSB]/Max. LBA
1F3
H
(SN) Max. sector/Max. LBA [LSB]
1F2
H
(SC) xx
1F1
H
(ER) Error information
• SET MAX SET PASSWORD (FR = 01h)
This command requests a transfer of 1 sector of data from the host, and defines the
contents of SET MAX password. The password is retained by the device until the
next power cycle.
The READ NATIVE MAX ADDRESS command is not executed just before this
command. The command is the SET MAX ADDRESS command if it is the
command just after the READ NATIVE MAX ADDRESS command is executed.
At command issuance (I/O registers setting contents)
1F7
H
(CM) 1 1 1 1 1 0 0 1
1F6
H
(DH) x x x DV xx
1F5
H
(CH)
1F4
H
(CL)
1F3
H
(SN)
xx
xx
xx
1F2
H
(SC) xx
1F1
H
(FR) 01
C141-E258 5-105