5.3 Host Commands
Table 5.33 Information to be read by IDENTIFY DEVICE command (1/3)
Word Value
Description
X '045A'
General Configuration
*1
1
X '3FFF'
Number of Logical cylinders
*2
2
X 'C837'
Detailed Configuration
*3
3
X '0010'
Number of Logical Heads
*2
4-5 X
'0000'
Undefined
6
X '003F'
Number of Logical sectors per Logical track
*2
7-9 X
'0000'
Undefined
10-19
Set by a device
Serial number (ASCII code, 20 characters, right)
20 X
'0003'
Undefined
21
X 'xxxx'
Buffer Size (1 LSB: 512 Bytes) ex. Buffer Size=8MBytes: X '4000'
22 X
'0000'
Reserved
23-26
–
Firmware revision (ASCII code, 8 characters, left)
27-46
Set by a device
Model name (ASCII code, 40 characters, left)
47
X '8010'
Maximum number of sectors per block on READ/WRITE
MULTIPLE command
48 X
'0000'
Reserved
49 X
'2F00'
Capabilities
*4
50 X
'4000'
Capabilities
*5
51
X '0200'
PIO data transfer mode
*6
52 X
'0200'
Reserved
X '0007'
Enable/disable setting of words 54-58 and 64-70, 88
*7
54
(Variable)
Number of current Cylinders
55
(Variable)
Number of current Head
(Variable)
Number of current sectors per track
57-58
(Variable)
Total number of current sectors
59
*8
Transfer sector count currently set by READ/WRITE
MULTIPLE command
*8
60-61
*2
Total number of user addressable sectors (28bit LBA mode only)
0
53
56
C141-E269
5-105
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Страница 19: ...Contents Glossary GL 1 Acronyms and Abbreviations AB 1 Index IN 1 C141 E269 xv ...
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