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5-32 C141-E057-01EN
At command issuance (I/O registers setting contents)
1F7
H
(CM)
1 1 1 0 1 1 0 0
1F6
H
(DH)
× × ×
DV
xx
1F5
H
(CH)
1F4
H
(CL)
1F3
H
(SN)
1F2
H
(SC)
1F1
H
(FR)
xx
xx
xx
xx
xx
At command completion (I/O registers contents to be read)
1F7
H
(ST)
Status information
1F6
H
(DH)
× × ×
DV
xx
1F5
H
(CH)
1F4
H
(CL)
1F3
H
(SN)
1F2
H
(SC)
1F1
H
(ER)
xx
xx
xx
xx
Error information
Table 5.4 Information to be read by IDENTIFY DEVICE command (1 of 7)
Word Value
Description
0 X’045A’
General Configuration *1
1 *2
Number of cylinders *2
2 X’0000’
Reserved
3 *2
Number of Heads *2
4-5
X’0000’
Undefined
6 *2
Number of sectors per track *2
7-9
X’0000’
Undefined
10-19
Set by a device
Serial number (ASCII code, 20 characters, right)
20-21
X’0000’
Undefined
22 X’0004’
Number of ECC bytes transferred at READ LONG or
WRITE LONG command