Travelstar 5K160 (PATA) Hard Disk Drive Specification
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7.9.2 Host Pausing Read DMA
PARAMETER
DESCRIPTION
MODE0 MODE1 MODE2 MODE3 MODE4 MODE5
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
tSR DSTROBE
to
HDMARDY- time
– 50 – 30 – 20 – – – – – –
tRFS HDMARDY-
to
final DSTROBE
time
– 75 – 70 – 60 – 60 – 60 – 50
Figure 8. Ultra DMA cycle timings (Host Pausing Read)
Note: When a host does not satisfy the tSR timing, the host should be ready to receive two more data
words after HDMARDY- is negated.
DSTROBE
HDMARDY-
DMACK-
DMARQ
tSR
STOP
tRFS