Hitachi DK23CA-10 - 10 GB Hard Drive Specifications page 96

DMARQ
(device)
DMACK-
(host)
STOP
(host)
DDMARDY-
(device)
HSTROBE
(host)
DD(15:0)
(host)
DA0, DA1, DA2,
CS0-, CS1-
Note: The definitions for the STOP, DDMARDY and HSTROBE signal lines are not in effect until
DMARQ and DMACK are asserted.
Mode 0(ns) Mode 1(ns) Mode 2(ns) Mode3(ns)
SYMBOL MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
t 70
DVS
t 6.2
DVH
t 0 150
LI
t 0
UI
t 20 70
ENV
t 0
ZIORDY
t 20
ACK
t 70
DZFS
K6602637
Rev.3
02.27.01
Figure 6-13 Initiating an Ultra DMA Write
t
UI
t
t
ACK
ENV
t
ZIORDY
t
ACK
t
ACK
48 31
6.2 6.2
0 150 0 150
0 0
20 70 20 70
0 0
20 20
48 31
t
LI
t
DZFS
t
DVS
Mode4(ns)
20 6.7
6.2 6.2
0 100 0 100
0 0
20 55 20 55
0 0
20 20
20 6.7
- 96 -
t
UI
t
DVH
Mode5(ns) Description
Data valid setup time at
4.8
sender
4.8 Data valid hold time at
sender
0 75 Limited interlock time
0 Unlimited interlock
20 50 Envelope time
0 Minimum time before
driving IORDY
Setup and hold times
20
before assertion and
negation of DMACK_
Time from data output
25
released-to-driving until
the first transition of
critical timing