IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive - Device Pausing Write DMA; Figure 48. Ultra DMA Cycle Timings (Device Pausing Write)

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- time
tSR
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 5
MODE 4
MODE 3
MODE 2
MODE 1
MODE 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 48. Ultra DMA cycle timings (Device Pausing Write)
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
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