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

Deskstar T7K250 Hard Disk Drive Specification
42
6.10.8 Host Terminating Write DMA
Table 32: Ultra DMA cycle timing chart (Host Terminating Write)
Table 33: Ultra DMA cycle timings (Host Terminating Write)
PARAMETER
DESCRIPTION
(all values in ns)
MODE 0 MODE 1 MODE 2 MODE 3 MODE 4 MODE 5
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
tSS Time from HSTROBE edge to
assertion of STOP
50–50–50–50–50–50–
tLI Limited interlock time 0 150 0 150 0 150 0 100 0 100 0 75
tMLI Interlock time with minimum 20 – 20 – 20 – 20 – 20 – 20 –
tCS CRC word setup time at device15–10–7–7–5–5–
tCH CRC word hold time at device 5–5–5–5–5–5–
tACK Hold time for DMACK- 20–20–20–20–20–20–
tIORDYZ Maximum time before releasing
IORDY
–20–20–20–20–20–20
HSTROBE
DDMARDY-
DMACK-
DMARQ
STOP
tMLI
DD(15:0)
Host drives DD
tCH
tCS
CRC
tSS
tACK
tACK
tLI
tIORDYZ
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tLI
tLI