Hitachi IC25N040ATCS04-0 Specifications - Page 68
Device Pausing Write DMA
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UPC - 683728198664
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7.9.6 Device Pausing Write DMA DMARQ DMACKSTOP DDMARDYHSTROBE tSR tRFS PARAMETER DESCRIPTION tSR HSTROBE to DDMARDY- time tRFS DDMARDY- to final HSTROBE time MODE 0 MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX (ns) (ns) (ns) (ns) (ns) (ns) (ns) (ns) (ns) (ns) (ns) (ns) - 50 - 30 - 20 75 - 70 - 60 - 60 - 60 - 50 Note: When a device does not satisfy the tSR timing, the device is ready to receive two more data words after DDMARDY- is negated. Figure 45. Ultra DMA cycle timings (Device Pausing Write) Hitachi Travelstar 60GH & 40GN hard disk drive specifications 55
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7.9.6 Device Pausing Write DMA
HSTROBE
DDMARDY-
DMACK-
DMARQ
tSR
STOP
tRFS
50
–
60
–
60
–
60
–
70
–
75
–
DDMARDY- to final HSTROBE
time
tRFS
–
–
–
–
–
–
20
–
30
–
50
–
HSTROBE to DDMARDY- time
tSR
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
Note: When a device does not satisfy the tSR timing, the device is ready to receive two more data words
after
DDMARDY-
is negated.
Figure 45. Ultra DMA cycle timings (Device Pausing Write)
Hitachi Travelstar 60GH & 40GN hard disk drive specifications
55