6.2.4.6 Device Pausing Write DMA
HSTROBE
DDMARDY-
DMACK-
DMARQ
tSR
STOP
tRFS
Figure 37. Ultra DMA cycle timing chart (Device Pausing Write)
50
–
60
–
60
–
60
–
70
–
75
–
DDMARDY– to final HSTROBE
time
tRFS
–
–
-
–
–
–
20
–
30
–
50
–
HSTROBE to DDMARDY–
response time
tSR
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MODE5
MODE4
MODE3
MODE2
MODE1
MODE0
PARAMETER DESCRIPTION
(all values in ns)
Note: When a device does not satisfy the tSR timing, it shall be ready to receive two more strobes after
DDMARDY– is negated.
Figure 38. Ultra DMA cycle timings (Device Pausing Write)
Deskstar 120GXP hard disk drive specifications
35
Содержание Deskstar 120 GXP
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