7.9.6 Device Pausing Write DMA
HSTROBE
DDMARDY-
DMACK-
DMARQ
tSR
STOP
tRFS
50–60–60–60–70–75–DDMARDY- to final HSTROBE
time
tRFS
––––––20–30–50–HSTROBE to DDMARDY- timetSR
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MODE 5MODE 4MODE 3MODE 2MODE 1MODE 0
PARAMETER DESCRIPTION
Note: When a device does not satisfy the tSR timing, the device is ready to receive two more data words
after DDMARDY- is negated.
Figure 45. Ultra DMA cycle timings (Device Pausing Write)
Travelstar 60GH & 40GN hard disk drive specifications
55