4.3.1Identify Device command
The Identify Device command (command code ECH) transfers information about the drive to the host following power up. The data is organized as a single
The following commands contain
Word | Description | Value |
|
|
|
0 | General configuration | 0040H |
1 | Number of logical cylinders (obsolete) 16,383 | 3FFFH |
2 | Specific configuration | C837H |
3 | Number of logical heads (obsolete) 16 | 0010H |
Retired | 0000H | |
6 | Number of logical sectors per logical track (obsolete) 63 | 003FH |
Reserved for CompactFlash Association | 0000H | |
9 | Retired | 0000H |
Serial number: (ATA ASCII string padded with spaces (20H)) | ASCII | |
Retired | 0000H | |
22 | Obsolete | 0004H |
Firmware revision (ATA ASCII string padded with spaces (20h)) | ASCII | |
|
|
|
Model number (ATA ASCII string padded with spaces (20h)) | ASCII | |
|
|
|
47 | (Bits | 8010H |
| per DRQ data block on READ/WRITE MULTIPLE commands. 16 |
|
48 | Reserved for Trusted Computing feature set options | 0000H |
49 | Capabilities – Standby Timer, IORDY Support, etc | 2F00H |
50 | Capabilities Continued | 4000H |
51 | PIO data transfer cycle timing option (Obsolete) | 0200H |
52 | Retired | 0200H |
53 | Words | 0007H |
54 | Number of current logical cylinders (Obsolete) | 3FFFH |
55 | Number of current logical heads (Obsolete) | 0010H |
56 | Number of current logical sectors per logical track (Obsolete) | 003FH |
Current capacity in sectors (Obsolete) | FC10H 00FBH | |
59 | Number of LBAs transferred per Read Multiple or Write Multiple. | 0101H |
| Sanitize Command Support |
|
Total number of user addressable logical sectors for | XXXXXXXXH* | |
| Note: The maximum value allowed in this field is: 0FFFFFFFh. If this |
|
| field contains 0FFFFFFFh and the device has user addressable LBAs |
|
| greater than or 137GB, then words 100..103 contain the total number |
|
| of user addressable LBAs |
|
62 | Obsolete | 0000H |
63 | Multiword DMA active and modes supported | 0007H |
| (see note following this table) |
|
Pulsar Product Manual, Rev. A | 27 |