Product manual

ATA Bus Interface and ATA Commands

5-8 DiamondMax Plus8 20/30/40GB AT

Minimum PIO transfer cycle time without flow control

15-0: Cycle time in nanoseconds

Minimum PIO transfer cycle time with IORDY flow control

15-0: Cycle time in nanoseconds

69-70 Reserved (for future command overlap and queuing)

71-74 Reserved for IDENTIFY PACKET DEVICE command.

75 Queue depth

15-5: Reserved

4-0: Maximum queue depth – 1

76-79 Reserved for Serial ATA

80 Major 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: Reserved for 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

Table 5-2 Identify Drive Command Parameters

Word CONTENT DESCRIPTION