9.1.7.7 Device Terminating Write DMA
HSTROBE
DDMARDY-
DMACK-
DMARQ
STOP
tMLI
tRP
DD00–DD15
xxxxxxxxxxxxxxxxxxxxxxxxxx
Host drives DD
tCH
tCS
CRC
tLI
tACK
tACK
tRFS
tLI
tIORDYZ
xxx
WT Data
xxxxxxxxxx
(all values are in ns)
20
–
20
–
20
–
20
–
20
–
20
–
Pull-up time before HSTROBE
release
tIORDYZ
–
20
–
20
–
20
–
20
–
20
–
20
Hold time after –DMACK
negation
tACK
–
5
–
5
–
5
–
5
–
5
–
5
CRC word hold time (at device
side)
tCH
–
5
–
5
–
7
–
7
–
10
–
15
CRC word setup time (at
device side)
tCS
–
20
–
20
–
20
–
20
–
20
–
20
Interlocking time
tMLI
75
0
100
0
100
0
150
0
150
0
150
0
Limited interlock time
tLI
–
85
–
100
–
100
–
100
–
125
–
160
Ready to pause time
tRP
50
–
60
–
60
–
60
–
70
–
75
–
Ready to final strobe time
tRFS
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
Parameter descriptions
MODE5
MODE4
MODE3
MODE2
MODE1
MODE0
Signal
names
Figure 33. Ultra DMA cycle timings—Device terminating Write
Deskstar 60 GXP Hard disk drive specification
38
Содержание IC35L020 - Deskstar 20 GB Hard Drive
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