IBM Deskstar 120 GXP, Specifications

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6.2.4.6 Device Pausing Write DMA
HSTROBE
DDMARDY-
DMACK-
DMARQ
tSR
STOP
tRFS
Figure 37. Ultra DMA cycle timing chart (Device Pausing Write)
50 – 60 – 60 – 60 – 70 – 75 – DDMARDY– to final HSTROBE
time tRFS
– –
-
– – – 20 – 30 – 50 – HSTROBE to DDMARDY–
response time tSR
MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN
MODE5 MODE4 MODE3 MODE2 MODE1 MODE0
PARAMETER DESCRIPTION
(all values in ns)
Note: When a device does not satisfy the tSR timing, it shall be ready to receive two more strobes after
DDMARDY– is negated.
Figure 38. Ultra DMA cycle timings (Device Pausing Write)
Deskstar 120GXP hard disk drive specifications
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