7.2.4.4 Device Terminating Read DMA
DSTROBE
HDMARDY-
DMACK-
DMARQ
STOP
tMLI
tLI
DD(15:00)
Tzah
xxxxxxxxxxxxxxxxxx
Host drives DD
Device drives
DD
tDH
tDS
CRC
tSS
tACK
tACK
tLI
tIORDYZ
xxxxx
xxxxxxxxxx
tAZ
tLI
Figure 32. Ultra DMA cycle timing chart (Device terminating Read)
20
–
20
–
20
–
20
–
20
–
20
–
Pull-up time before DSTROBE
release
tIORDYZ
–
20
–
20
–
20
–
20
–
20
–
20
Hold time after –DMACK
negation
tACK
–
4.6
–
5
–
5
–
5
–
5
–
5
Data hold time (at device side)
tDH
–
4.0
–
5
–
7
–
7
–
10
–
15
Data setup time (at device side)
tDS
–
20
–
20
–
20
–
20
–
20
–
20
Interlocking time
tMLI
–
20
–
20
–
20
–
20
–
20
–
20
Output enable time
tZAH
10
–
10
–
10
–
10
–
10
–
10
–
Output release time
tAZ
75
0
100
0
100
0
150
0
150
0
150
0
Limited interlock time
tLI
–
50
–
50
–
50
–
50
–
50
–
50
Time from strobe to stop
assertion
tSS
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MODE5
MODE4
MODE3
MODE2
MODE1
MODE0
PARAMETER DESCRIPTION
(all values in ns)
Figure 33. Ultra DMA cycle timings (Device Terminating Read)
Deskstar 40GV & 75GXP hard disk drive specifications
35
Summary of Contents for DTLA-305040 - Deskstar 41.1 GB Hard Drive
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