Hitachi DK23DA-20F - Page 106

K6602705
Rev.3
08.20.01
- 106 -
Figure 6-15 Device pausing an Ultra DMA Write
DMARQ
(device)
DMACK-
(host)
STOP
(host)
DDMARDY-
(device)
HSTROBE
(host)
DD(15:0)
(host)
t
RFS
t
RP
Note: The device negates DMARQ to request termination of the Ultra DMA burst no sooner than t
RP
after
DDMARDY- is negated.
Mode 0(ns) Mode 1(ns) Mode 2(ns) Mode 3(ns) Mode 4(ns) Mde5(ns) Description
SYMBOL MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
t
RFS
75 70 60 60 60 50 Ready-to-final
STROBE time
t
RP
160 125 100 100 100 85 Ready-to-pause time