Travelstar 5K160 (PATA) Hard Disk Drive Specification
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7.9.7 Device Terminating Write DMA
PARAMETER
DESCRIPTION
MODE0 MODE1 MODE2 MODE3 MODE4 MODE5
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
tRFS DDMARDY-
to
final HSTROBE
time
– 75 – 70 – 60 – 60 – 60 – 50
tRP Minimum
time
to negate
DMARQ
160
– 125
– 100
– 100
– 100
– 85
–
tLI Limited
interlock time
0 150 0 150 0 150 0 100 0 100 0 75
tMLI Interlocking
time
20
– 20
– 20
– 20
– 20
– 20
–
tDS CRC
word
setup time at
device
15
– 10
– 7 – 7 – 5 – 4 –
tDH CRC
word
hold
time at device
5 – 5 – 5 – 5 – 5 – 4.6
–
tACK Hold
time
for
DMACK-
negation
20
– 20
– 20
– 20
– 20
– 20
–
tIORDYZ Maximum
time
before
releasing
IORDY
– 20 – 20 – 20 – 20 – 20 – 20
Figure 13. Ultra DMA cycle timings (Device Terminating Write)
HSTROBE
DDMARDY-
DMACK-
DMARQ
STOP
tMLI
tRP
DD(15:0)
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Host drives DD
tDH
tDS
CRC
tLI
tACK
tACK
tRFS
tLI
tIORDYZ
xxx
WT Data
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