Hitachi DK23EB - Travelstar Series 20 GB Hard Drive Specifications page 103

D M A R Q
(device)
D M A C K -
(host)
S T O P
(host)
H D M A R D Y-
(host)
D S T R O B E
(device)
D D (15:0)
D A 0, D A 1, D A 2,
C S 0-, C S 1-
Note: The definitions for the STOP, HDMARDY and DSTROBE signal lines are no longer in effect after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 75
RFS
t 160
RP
t 20
IORDYZ
t 20
ACK
K6602743
Rev.2
02.12.'02
Figure 6-12 Host terminating an Ultra DMA Read
t
LI
t
R P
t
R F S
48 31
6.2 6.2
0 150 0 150
20 20
10 10
20 20
70 60
125 100
20 20
20 20
t
M LI
t
Z A H
t
A Z
t
t
LI
t
C V S
20 6.7
6.2 6.2
0 100 0 100
20 20
10 10
20 20
60 60
100 100
20 20
20 20
- 103 -
t
A C K
t
A C K
M LI
t
IO R D YZ
t
C V H
C R C
t
A C K
)
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
50 Ready-to-final-STROBE
time
85 Ready-to-pause time
20 Maximum time before
releasing IORDY
20 Setup and hold times
before assertion and
negation of DMACK_
Description