ATA Bus Interface and ATA Commands

Word	Content Description

80Major version number

0000h or FFFFh = device does not report version

15:Reserved

14:Reserved for ATA/ATAPI-14

13:Reserved for ATA/ATAPI-13

12:Reserved for ATA/ATAPI-12

11:Reserved for ATA/ATAPI-11

10:Reserved for ATA/ATAPI-10

9:Reserved for ATA/ATAPI-9

8:Reserved for ATA/ATAPI-8

7:1 = supports ATA/ATAPI-7

6:1 = supports ATA/ATAPI-6

5:1 = supports ATA/ATAPI-5

4:1 = supports ATA/ATAPI-4

3:1 = supports ATA-3

2:Obsolete

1:Obsolete

0:Reserved

Maxtor Computer Drive manual ATA Bus Interface and ATA Commands