SATA Bus Interface and ATA Commands

When the command is received, the drive:

1. Sets BSY

2. Stores the required parameter information in the sector buffer

3. Sets the DRQ bit

4. Generates an interrupt

The host may then read the information out of the sector buffer. Parameter words in the buffer are shown in Table 5-2.

Note: All reserved bits or words should be zeroes.

 

 

Table 5-2Identify Drive Command Parameters

 

 

 

Word

 

CONTENT DESCRIPTION

 

 

 

 

 

General configuration bit-significant information:

 

 

 

 

15:

0 = ATA device

 

 

 

 

14-8:

Retired

 

 

 

 

7:

1 = removable media device

 

 

 

0

6:

Obsolete

 

 

 

5-3:

Retired

 

 

 

 

2:

Response incomplete

 

 

 

 

1:

Retired

 

 

 

 

0:

Reserved

 

 

 

1

Obsolete

 

 

 

2

Specific configuration

 

 

 

3

Obsolete

 

 

 

 

4-5

Retired

 

 

 

 

6

Obsolete

 

 

 

7-8

Reserved for assignment by the CompactFlash Association

 

 

 

9

Retired

 

 

 

10-19

Serial number (20 ASCII characters)

 

 

 

20-21

Retired

 

 

 

 

22

Reserved

 

 

 

 

Maxtor QuickView 400/500GB Serial ATA Hard Disk Drive 5-5