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9.1.7.6 Device Pausing Write DMA
HSTROBE
DDMARDY-
DMACK-
DMARQ
tSR
STOP
tRFS
(all values are in ns)
50
–
60
–
60
–
60
–
70
–
75
–
Ready to final strobe time
tRFS
–
–
–
–
–
–
20
–
30
–
50
–
Strobe to ready response time
tSR
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
Parameter descriptions
MODE5
MODE4
MODE3
MODE2
MODE1
MODE0
Signal
names
Note: When a device does not meet tSR, it must be ready to receive 3 more strobes after DDMARDY- is
negated.
Figure 32. Ultra DMA cycle timings—Device pausing Write
Deskstar 60 GXP Hard disk drive specification
37
Содержание IC35L020 - Deskstar 20 GB Hard Drive
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