Initiating Write Dma; Table 33. Ultra Dma Cycle Timing Chart (Initiating Write); Table 34. Ultra Dma Cycle Timings (Initiating Write) - Hitachi HDS725050KLA360 Specifications

6.8.5 Initiating Write DMA

Table 33: Ultra DMA cycle timing chart (Initiating Write)
DMARQ
DMACK-
STOP
DDMARDY-
HSTROBE
DD(15:0)
Table 34: Ultra DMA cycle timings (Initiating Write)
PARAMETER DESCRIPTION
(all values in ns)
tUI Unlimited interlock time
tACK Setup time for DMACK-
tENV Envelope time
tZIORDY Minimum time before driving IORDY
tLI Limited interlock time
tCYC Cycle time
t2CYC Two cycle time
tDS Data setup time at device
tDH Data Hold time at device
tUI
tENV
tACK
tZIORDY
tACK
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
MODE 0
MIN MAX
0 –
20 –
20 70
0 –
0 150
112 –
230 –
15 –
5 –
Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification
tLI
tUI
WT Data
Host drives DD
MODE 1 MODE 2
MIN MAX MIN MAX MIN
0 – 0 –
20 – 20 – 20
20 70 20 70 20
0 – 0 –
0 150 0 150
73 – 54 – 39
154 – 115 – 86
10 – 7 –
5 – 5 –
39
t2CYC
tCYC tCYC
tDH
tDS
WT Data
xxx xxx WT Data
MODE 3 MODE 4 MODE 5
MAX MIN MAX MIN
0 – 0 – 0
– 20 – 20
55 20 50 20
0 – 0 – 0
0 100 0 100 0
– 25 – 16.8
– 57 – 38
7 – 5 – 4
5 – 5 – 4.6
MODE 6
MAX MIN MAX
– 0 --
– 20 --
50 20 50
– 0 --
60 0 60
– 13.0 --
– 29 --
– 2.6 --
– 3.5 --