Host Terminating Write Dma; Table 36. Ultra Dma Cycle Timings (Host Terminating Write) - Hitachi 7K100 - Travelstar - Hard Drive Specifications

7.9.8 Host Terminating Write DMA

DMARQ
DMACK-
STOP
DDMARDY-
HSTROBE
DD(15:0)
Table 36: Ultra DMA cycle timings (Host Terminating Write)
PARAMETER
DESCRIPTION
tSS Time from HSTROBE
edge to assertion of STOP
tLI Limited interlock time
tMLI Interlock time with mini-
mum
tCS CRC word setup time at
device
tCH CRC word hold time at
device
tACK Hold time for DMACK-
tIORDYZ Maximum time before
releasing IORDY
tLI
tSS
tLI
tLI
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Host drives DD
MODE 0 MODE 1
MIN MAX MIN MAX
(ns) (ns) (ns) (ns)
50 – 50 –
0 150 0 150
20 – 20 –
15 – 10 –
5 – 5 –
20 – 20 –
– 20 – 20
Travelstar 7K100 Hard Disk Drive Specification
50
tMLI
tACK
tIORDYZ
tACK
tDH
tDS
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MODE 2 MODE 3
MIN MAX MIN MAX
(ns) (ns) (ns) (ns)
50 – 50 –
0 150 0 100
20 – 20 –
7 – 7 –
5 – 5 –
20 – 20 –
– 20 – 20
MODE 4 MODE 5
MIN MAX MIN MAX
(ns) (ns) (ns) (ns)
50 – 50 –
0 100 0 75
20 – 20 –
5 – 4 –
5 – 4.6 –
20 – 20 –
– 20 – 20