Host Pausing Read Dma; Table 27. Ultra Dma Cycle Timing Chart (Host Pausing Read); Table 28. Ultra Dma Cycle Timings (Host Pausing Read) - Hitachi HDS725050KLA360 Specifications
3.5 inch ultra ata/133 hard disk drive, 3.5 inch serial ata hard disk drive
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Also See for HDS725050KLA360:
- Install manual (2 pages) ,
- Specifications (191 pages) ,
- Datasheet (2 pages)
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6.8.2 Host Pausing Read DMA
Table 27: Ultra DMA cycle timing chart (Host pausing Read)
DMARQ
DMACK-
STOP
HDMARDY-
DSTROBE
Table 28: Ultra DMA cycle timings (Host pausing Read)
PARAMETER DESCRIPTION
(all values in ns)
tSR
DSTROBE to HDMARDY- time
HDMARDY- to final DSTROBE
tRFS
time
Note: When a host does not satisfy tSR timing, it should be ready to receive two more data words after HDMARDY - is
negated.
tSR
MODE 0
MODE 1
MIN
MAX
MIN
MAX
–
50
–
30
–
75
–
70
Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification
tRFS
MODE 2
MODE 3
MIN
MAX
MIN
MAX
–
20
–
–
–
60
–
60
36
MODE 4
MODE 5
MODE 6
MIN
MAX
MIN
MAX
MIN
–
–
–
–
--
–
50
–
50
--
MAX
--
50
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