Host Terminating Write Dma; Table 32.Ultra Dma Cycle Timing Chart (Host Terminating Write); Table 33.Ultra Dma Cycle Timings (Host Terminating Write) - Hitachi T7K250 - Deskstar - Hard Drive Specifications

6.10.8 Host Terminating Write DMA

Table 32: Ultra DMA cycle timing chart (Host Terminating Write)
DMARQ
DMACK-
STOP
DDMARDY-
HSTROBE
DD(15:0)
Table 33: Ultra DMA cycle timings (Host Terminating Write)
PARAMETER
DESCRIPTION
(all values in ns)
tSS Time from HSTROBE edge to
assertion of STOP
tLI Limited interlock time
tMLI Interlock time with minimum
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
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MODE 0
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
50 –
0 150
20 –
15 –
5 –
20 –
– 20
Deskstar T7K250 Hard Disk Drive Specification
tMLI
tIORDYZ
tLI
Host drives DD
MODE 1 MODE 2
50 – 50 –
0 150 0 150
20 – 20 –
10 – 7 –
5 – 5 –
20 – 20 –
– 20 – 20
42
tACK
tACK
tCH
tCS
CRC xxxxxxxxxx
MODE 3 MODE 4
50 – 50 –
0 100 0 100
20 – 20 –
7 – 5 –
5 – 5 –
20 – 20 –
– 20 – 20
MODE 5
50 –
0 75
20 –
5 –
5 –
20 –
– 20