IBM Deskstar 120 GXP, Технические характеристики

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6.2.4.7 Device Terminating Write DMA
HSTROBE
DDMARDY-
DMACK-
DMARQ
STOP
tMLI
tRP
DD(15:00) xxxxxxxxxxxxxxxxxxxxxxxxxx
Host drives DD
tCH tCS
CRC
tLI
tACK
tACK
tRFS tLI
tIORDYZ
xxx
WT Data
xxxxxxxxxx
Figure 39. Ultra DMA cycle timing chart (Device Terminating Write)
20 – 20 – 20 – 20 – 20 – 20 –
Maximum time before releasing
IORDY
tIORDYZ
– 20 – 20 – 20 – 20 – 20 – 20 Hold time for –DMACK tACK
– 5 – 5 – 5 – 5 – 5 – 5
CRC word hold time (at device
side)
tCH
– 5 – 5 – 7 – 7 – 10 – 15
CRC word setup time (at device
side)
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
– 85 – 100 – 100 – 100 – 125 – 160 Ready to pause time tRP
50 – 60 – 60 – 60 – 70 – 75 –
DDMARDY to final HSTROBE
time
tRFS
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 40. Ultra DMA cycle timings (Device terminating Write)
Deskstar 120GXP hard disk drive specifications
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