K6610170
Rev.2
Dec 22, 2004
- 65 -
Table 7.8 IDENTIFY DEVICE information
Word Description
Value
(HEX.)
0 General
configuration
bit 15
1 = ATAPI Device, 0 = ATA Device
bit 14 - 8 0 = Retired
bit 7
1 = Removable Media, 0 = Fixed Media Device
bit 6
1 = Fixed Device
bit 5 - 3
0 = Retired
bit 2
1 = IDENTIFY DEVICE data incomplete
bit 1
0 = Retired
bit 0
0 = Reserved
0040h
1
Number of logical cylinders
See
Table 7.9
2 Specific
configuration
C837h
3
Number of logical heads
See
Table 7.9
4 – 5 Retired
0000h
6
Number of logical sectors per logical track
See
Table 7.9
7-9 Vendor
Specific
10-19 Serial Number (20 ASCII characters)
20 Retired
0000h
21 Retired
0000h
22
Number of ECC bytes passed on READ/WRITE LONG commands
0004h
23-26 Firmware Revision (8 ASCII Characters)
27-46 Model number(40 ASCII Characters)
47
Number of sectors on multiple commands
bit 15 - 8 80h (Fixed)
bit 7 - 0 Number of sectors on multiple command
8010h
48 Reserved
0000h
49 Capabilities
bit 15 – 14 0 = Reserved
bit 13
1 = Standby timer values as specified in ATA SPEC supported
bit 12
0 = Reserved
bit 11
1 = IORDY supported
bit 10
1 = IORDY can be disabled
bit 9
1 = LBA supported
bit 8
1 = DMA supported
bit 7 – 0 0 = Retired
0B00h