Hitachi DK23CA-10 - 10 GB Hard Drive Specifications page 94

DMARQ
(device)
DMACK-
(host)
STOP
(host)
HDMARDY-
(host)
DSTROBE
(device)
DD(15:0)
DA0, DA1, DA2,
CS0-, CS1-
Note: The definitions for the STOP, HDMARDY and DSTROBE signal lines are no longer in effect
after DMARQ and DMACK are negated.
Mode 0(ns) Mode 1(ns) Mode 2(ns) Mode3(ns) Mode4(ns) Mode5(ns)
SYMBOL MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
t 70
CVS
t 6.2
CVH
t 0 150
LI
t 20
MLI
t 10
AZ
t 20
ZAH
t 20
IORDYZ
t 20
ACK
t 50
SS
K6602637
Rev.3
02.27.01
Figure 6-11 Device terminating an Ultra DMA Read
t
LI
t
LI
t
SS
t
ZAH
t
AZ
48 31
6.2 6.2
0 150 0 150
20 20
10 10
20 20
20 20
20 20
50 50
t
MLI
t
LI
t
CVS
20 6.7
6.2 6.2
0 100 0 100
20 20
10 10
20 20
20 20
20 20
50 50
- 94 -
t
ACK
t
ACK
t
IORDYZ
t
CVH
CRC
t
ACK
Description
10 CRC word valid setup time
at sender
10 CRC word valid hold time at
sender
0 75 Limited interlock time
20 Interlock time with minimum
10 Maximum time allowed for
output drivers to release
20 Minimum delay time for
output drivers turning on
20 Maximum time before
releasing IORDY
20 Setup and hold times before
assertion and negation of
DMACK_
50 Time from STROBE edge
to negation of DMARQ or
assertion of STOP