Hitachi HTS542525K9SA00 - Initiating Write DMA; Table 27: Ultra DMA Cycle Timing Chart (Initiating Write)

Deskstar 7K160 Hard Disk Drive Specification
36
6.9.5 Initiating Write DMA
Table 27: Ultra DMA cycle timing chart (Initiating Write)
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
tUI Unlimited interlock time0–0–0–0–0–0–0–
tACK Setup time for DMACK- 20 – 20 – 20 – 20 – 20 – 20 – 20 –
tENV Envelope time 20 70 20 70 20 70 20 55 20 55 20 55 20 50
tZIORDY Minimum time before
driving IORDY
0–0–0–0–0–0–0–
tLI Limited interlock time 0 150 0 150 0 150 0 100 0 100 0 75 0 60
tCYC Cycle time 112 – 73 – 54 – 39 – 25 – 16.8 – 13.0 –
t2CYC Two cycle time 230 – 154 – 115 – 86 – 57 – 38 – 29 –
tDS Data setup time at
device
15–10–7–7–5–4–2.6–
tDH Data Hold time at device5–5–5–5–5–4.6–3.5–
HSTROBE
DDMARDY-
DMACK-
DMARQ
STOP
tUI
tACK
tENV
tZIORDY
tLI
tUI tCYC
t2CYC
DD(15:0)
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Host drives DD
tDH
tDS
WT Data
WT Data
WT Data
tACK
tCYC