Datasheet

Travelstar 80GN Hard Disk Drive Specification
54
7.9.8 Host Terminating Write DMA
Table 35: Ultra DMA cycle timings (Host Terminating Write)
PARAMETER DESCRIPTION
MODE 0MODE 1MODE 2MODE 3MODE 4MODE 5
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
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 device 15 – 10 – 7 – 7 – 5 – 4 –
tCH CRC word hold time at device 5–5–5–5–5–4.6–
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