Hitachi 7K80 - Deskstar - Hard Drive - 6.8.6 Device Pausing Write DMA

Deskstar 7K80 Hard Disk Drive Specification
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6.8.2 Host Pausing Read DMA
Table 26: Ultra DMA cycle timing chart (Host pausing Read)
Table 27: Ultra DMA cycle timings (Host pausing Read)
Note: When a host does not satisfy tSR timing, it should be ready to receive two more data words after HDMARDY
- is negated.
PARAMETER
DESCRIPTION
(all values in ns)
MODE 0 MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MODE 6
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
tSR DSTROBE to
HDMARDY- time
–50–30–20––––––––
tRFS HDMARDY- to final
DSTROBE time
–75–70–60–60–60–50–50
DSTROBE
HDMARDY-
DMACK-
DMARQ
tSR
STOP
tRFS