Hitachi DK23DA-30F - 30 GB Hard Drive Specifications page 100

DSTROBE
at device
DD(15:0)
at device
DSTROBE
at host
DD(15:0)
at host
Note: DD(15:0) and DSTROBE signals are shown at both the host and the device to emphasize that cable settling
time as well as cable propagation delay shall not allow the data signals to be considered stable at the host until
some time after they are driven by the device.
Mode 0(ns) Mode 1(ns) Mode 2(ns) Mode3(ns) Mode4(ns)
SYMBOL MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN
t 112
CYC
t2 230
CYC
t 15
DS
t 5
DH
t 70
DVS
t 6.2
DVH
t 14.7
DSIC
t 4.8
DHIC
t 72.9
DVSIC
t 9.0
DVHIC
K6602705
Rev.3
08.20.01
Figure 6-9 Sustained Ultra DMA Read Data
t
CYC
t
DVH
t
DVS
t
DVHIC
t
DVSIC
t
t
DH
DS
t
t
DHIC
DSIC
73 54
153 115
10 7
5 5
48 31
6.2 6.2
9.7 6.8
4.8 4.8
50.9 33.9
9.0 9.0
t
2CYC
t
CYC
t
DVH
t
t
DVHIC
DVS
t
DVSIC
t
t
DS
DH
t
t
DSIC
DHIC
39 25
86 57
7 5
5 5
20 6.7
6.2 6.2
6.8 4.8
4.8 4.8
22.6 9.5
9.0 9.0
- 100 -
t
2CYC
t
DVH
t
DVHIC
t
DH
t
DHIC
Mode5(ns) Description
MAX
16.8 Cycle time allowing for
asymmetry and clock
variation
Two cycle time allowing for
38
clock variation
4 Data setup time at recipient
4.6 Data hold time at recipient
4.8 Data valid setup time at
sender
Data valid hold time at
4.8
sender
Recipient IC data setup time
2.3
Recipient IC data hold time
2.8
Sender IC data valid setup
6.0
time
6.0 Sender IC data valid hold
time