ATA Bus Interface and ATA Commands
5-8
Maxtor MaxLine Plus II 250GB AT
67
Minimum PIO transfer cycle time without flow control
15-0:
Cycle time in nanoseconds
68
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