ATA Bus Interface and ATA Commands

Table 5-2Identify Drive Command Parameters

Word

 

 

CONTENT DESCRIPTION

 

 

 

 

 

 

 

 

85

7:

1

= release interrupt enabled

 

 

 

 

 

6:

1

= look-ahead enabled

 

 

 

 

 

5:

1

= write cache enabled

 

 

 

 

4:

Shall be cleared to zero to indicate that the PACKET Command feature set is

 

 

not supported.

 

 

 

 

 

3:

1

= Power Management feature set enabled

 

 

 

 

 

2:

1

= Removable Media feature set enabled

 

 

 

 

 

1:

1

= Security Mode feature set enabled

 

 

 

 

 

0:

1

= SMART feature set enabled

 

 

86

Command set/feature enabled.

 

 

 

 

15-14:

Reserved

 

 

 

 

 

13:

1

= FLUSH CACHE EXT command supported

 

 

 

 

 

12:

1

= FLUSH CACHE command supported

 

 

 

 

 

11:

1

= Device Configuration Overlay supported

 

 

 

 

 

10:

1

= 48-bit Address features set supported

 

 

 

 

 

9:

1

= Automatic Acoustic Management feature set enabled

 

 

 

 

 

8:

1

= SET MAX security extension enabled by SET MAX SET PASSWORD

 

 

 

 

7:

See Address Offset Reserved Area Boot, INCITS TR27:2001

 

 

 

 

 

6:

1

= SET FEATURES subcommand required to spin-up after power-up

 

 

 

 

 

5:

1

= Power-Up In Standby feature set enabled

 

 

 

 

 

4:

1

= Removable Media Status Notification feature set enabled

 

 

 

 

 

3:

1

= Advanced Power Management feature set enabled

 

 

 

 

 

2:

1

= CFA feature set enabled

 

 

 

 

 

1:

1

= READ/WRITE DMA QUEUED command supported

 

 

 

 

 

0:

1

= DOWNLOAD MICROCODE command supported

 

 

87

Command set/feature default.

 

 

 

 

15:

Shall be cleared to zero

 

 

 

 

14:

Shall be set to one

 

 

 

 

13-8:

Reserved

 

 

 

 

7:

1 = WRITE DMA QUEUED FUA EXT command supported

 

 

 

 

5-12 Quickview 300 80/100/120/160/200/250/300GB PATA