U Series 9 Product Manual, Rev. C
Word
65
Minimum multiword DMA transfer cycle
time per word (120 nsec)
66
Recommended multiword DMA transfer
cycle time per word (120 nsec)
67
Minimum PIO cycle time without IORDY
flow control (240 nsec)
68
Minimum PIO cycle time with IORDY flow
control (120 nsec)
69–74
ATA-reserved
75
Queue depth
76–79
ATA-reserved
80
Major version number
81
Minor version number
82
Command sets supported
83
Command sets supported
84
Command sets support extension
85
Command sets enabled
86
Command sets enabled
87
Command sets enable extension
88
Ultra DMA support and current mode
(see note following this table)
89
Security erase time
90
Enhanced security erase time
92
Master password revision code
93
Hardware reset value (see description
following this table)
95–99
ATA-reserved
Description
Value
0078
H
0078
H
00F0
H
0078
H
0000
H
0000
H
0000
H
007E
H
0000
H
346B
H
7D01
H
4003
H
34xx
H
3xxx
H
4003
H
xx3F
H
0000
H
0000
H
FFFE
H
xxxx
H
0000
H
31