Travelstar 5K160 (PATA) Hard Disk Drive Specification
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7.9.3 Host Terminating Read DMA
PARAMETER
DESCRIPTION
MODE
0 MODE
1 MODE
2 MODE
3 MODE
4 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 HDMARDY-
to
final DSTROBE
time
– 75 – 70 – 60 – 60 – 60 – 50
tRP
Minimum time to
assert STOP
160
– 125
– 100
– 100
– 100
– 85
–
tLI Limited
interlock
time
0 150 0 150 0 150 0 100 0 100 0 75
tAZ Maximum
time
allowed for
output drivers to
release
– 10 – 10 – 10 – 10 – 10 – 10
tZAH Minimum
delay
time required for
output
20
– 20
– 20
– 20
– 20
– 20
–
tMLI Interlock
time
with minimum
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
DMACK-
negation
20
– 20
– 20
– 20
– 20
– 20
–
tIORDYZ Maximum
time
before releasing
IORDY
– 20 – 20 – 20 – 20 – 20 – 20
Figure 9. Ultra DMA cycle timings (Host Terminating Read)
DSTROBE
HDMARDY-
DMACK-
DMARQ
STOP
tMLI
tRP
DD(15:0)
tZAH
xxxxxxxxxxxxxxxxxx
xxx
Device drives DD
Host drives DD
tDH
tDS
CRC
tACK
tACK
tRFS
tLI
tIORDYZ
xxx
RD Data
xxxxxxxxxx
tAZ
tLI