K6602743
Rev.2
02.12.’02
- 101 -
Figure 6-10 Host pausing an Ultra DMA Read
DMARQ
(device)
DMACK-
(host)
STOP
(host)
HDMARDY-
(host)
DSTROBE
(device)
DD(15:0)
(device)
t
RFS
t
RP
Note: The host asserts STOP to request termination of the Ultra DMA burst no sooner than t
RP
after HDMARDY-
is negated.
Mode 0(ns) Mode 1(ns) Mode 2(ns) Mode3(ns) Mode4(ns) Mode5(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