IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive - Host Terminating Write DMA; Figure 50. Ultra DMA Cycle Timings (Host Terminating Write)

7.9.8 Host Terminating Write DMA
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
20–20–20–20–20–20–
Maximum time before releasing
IORDY
tIORDYZ
–
20
–
20
–
20
–
20
–
20
–
20
Hold time for DMACK-
tACK
–
4.6
–
5
–
5
–
5
–
5
–
5
CRC word hold time at device
tCH
–
4
–
5
–
7
–
7
–
10
–
15
CRC word setup time at device
tCS
–
20
–
20
–
20
–
20
–
20
–
20
Interlock time with minimum
tMLI
75
0
100
0
100
0
150
0
150
0
150
0
Limited interlock time
tLI
–50–50–50–50–50–50
Time from HSTROBE edge to
assertion of STOP
tSS
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MAX
(ns)
MIN
(ns)
MODE 5
MODE 4
MODE 3
MODE 2
MODE 1
MODE 0
PARAMETER DESCRIPTION
Figure 50. Ultra DMA cycle timings (Host Terminating Write)
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
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