Word

Description

Value

 

 

 

160–254

ATA-reserved

0000H

255

Integrity word

xxA5H

Note. Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not supported

Note. See the bit descriptions below for words 63, 88, and 93 of the Identify Drive data:

Description (if bit is set to 1)

Bit

Word 63

 

 

0

Multiword DMA mode 0 is supported.

 

 

1

Multiword DMA mode 1 is supported.

 

 

2

Multiword DMA mode 2 is supported.

 

 

8

Multiword DMA mode 0 is currently active.

 

 

9

Multiword DMA mode 1 is currently active.

 

 

10

Multiword DMA mode 2 is currently active.

Bit

Word 88

 

 

0

Ultra DMA mode 0 is supported.

 

 

1

Ultra DMA mode 1 is supported.

 

 

2

Ultra DMA mode 2 is supported.

 

 

3

Ultra DMA mode 3 is supported.

 

 

4

Ultra DMA mode 4 is supported.

 

 

5

Ultra DMA mode 5 is supported.

 

 

8

Ultra DMA mode 0 is currently active.

 

 

9

Ultra DMA mode 1 is currently active.

 

 

10

Ultra DMA mode 2 is currently active.

 

 

11

Ultra DMA mode 3 is currently active.

 

 

12

Ultra DMA mode 4 is currently active.

 

 

13

Ultra DMA mode 5 is currently active.

 

 

Bit

Word 93

 

 

13

1 = 80-conductor cable detected, CBLID above VIH

 

0 = 40-conductor cable detected, CBLID below VIL

32

DB35.3 Series PATA Product Manual, Rev. B

Page 38
Image 38
Seagate ST3750840ACE manual Description if bit is set to Bit Word