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C141-E112-01EN 5 - 29
At command issuance (I/O registers setting contents)
1F7
H
(CM) 11101100
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 5.5 Information to be read by IDENTIFY DEVICE command (1 of 6)
Word Value Description
0 X‘045A’ General Configuration *1
1 *2 Number of cylinders
2 X‘0000’ Reserved
3 *3 Number of Heads
4 X‘0000’ Retired
5 X‘0000’ Retired
6 X‘003F’ Number of sectors per track
7-9 X‘000000000000’ Retired
10-19 – Serial number (ASCII code) *4
20 X‘0003’ Retired
21 X‘1000’ Buffer size in 512 byte increments
22 X‘0004’ Number of ECC bytes transferred at READ LONG or WRITE LONG command
23-26 – Firmware revision (ASCII code) *5
27-46 – Model number (ASCII code) *6
47 X‘8010’ Maximum number of sectors per interrupt on READ/WRITE MULTIPLE command
48 X‘0000’ Reserved
49 X‘2B00’ Capabilities *7
50 X‘4000’ Reserved
51 X‘0200’ PIO data transfer mode *8
52 X‘0200’ Retired
53 X‘0007’ Enable/disable setting of words 54-58, 64-70 and 88 *9