Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification
37
6.8.3 Host Terminating Read DMA
Table 29: Ultra DMA cycle timing chart (Host terminating Read)
Table 30: Ultra DMA cycle timings (Host terminating Read)
PARAMETER DESCRIPTION
(all values in ns)
MODE 0
MODE 1
MODE 2
MODE 3
MODE 4
MODE 5
MODE 6
MIN MAX
MIN MAX
MIN MAX
MIN MAX
MIN MAX
MIN MAX
MIN
MAX
tRFS
HDMARDY- to final DSTROBE time
–
75
–
70
–
60
–
60
–
60
–
50
--
50
tRP
Ready to pause time
160
–
125
–
100
–
100
–
100
–
85
–
85
--
tLI
Limited interlock time
0
150
0
150
0
150
0
100
0
100
0
75
0
60
tAZ
Maximum time allowed for output driv-
ers to release
–
10
–
10
–
10
–
10
–
10
–
10
--
10
tZAH
Minimum delay time required for out-
put
20
–
20
–
20
–
20
–
20
–
20
–
20
--
tMLI
Interlock time with minimum
20
–
20
–
20
–
20
–
20
–
20
–
20
--
tCS
CRC word setup time at device
15
–
10
–
7
–
7
–
5
–
5
–
5
--
tCH
CRC word hold time at device
5
–
5
–
5
–
5
–
5
–
5
–
5
--
tACK
Hold time for DMACK-
20
–
20
–
20
–
20
–
20
–
20
–
20
--
tIORDYZ
Maximum time before releasing
IORDY
–
20
–
20
–
20
–
20
–
20
–
20
--
20
DSTROBE
HDMARDY-
DMACK-
DMARQ
STOP
tMLI
tRP
DD(15:0)
tZAH
xxxxxxxxxxxxxxxxxx
xxx
Device drives DD
Host drives DD
tCH
tCS
CRC
tACK
tACK
tRFS
tLI
tIORDYZ
xxx
RD Data
xxxxxxxxxxx
tAZ
tLI
Содержание 3.5-INCH HDS725050KLA360
Страница 2: ......
Страница 18: ...Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification 4 ...
Страница 20: ...Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification 6 ...
Страница 21: ...Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive specification 7 Part 1 Functional specification ...
Страница 22: ...Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification 8 ...
Страница 24: ...Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification 10 ...
Страница 34: ...Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification 20 ...
Страница 36: ...Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification 22 ...
Страница 58: ...Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification 44 ...
Страница 80: ...Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification 66 ...
Страница 88: ...Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification 74 ...
Страница 114: ...Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification 100 ...
Страница 120: ...Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification 106 ...