Host Pausing An Ultra Dma Data In Burst; Figure 6-6 Host Pausing An Ultra Dma Data In Burst - Samsung SPINPOINT V40 Series Product Manual

6.7.4.4

Host pausing an Ultra DMA data in burst

The values for the timings for each of the Ultra DMA modes are contained in 6.7.4.2.
DMARQ
(device)
DMACK-
(host)
STOP
(host)
HDMARDY-
(host)
DSTROBE
(device)
DD(15:0)
(device)
NOTES −
1 The host may assert STOP to request termination of the Ultra DMA burst no sooner than
t after HDMARDY- is negated.
RP
2 If the t timing is not satisfied, the host may receive zero, one, or two more data words
SR
from the device.
SpinPoint V40 Product Manual
t
SR

Figure 6-6 Host pausing an Ultra DMA data in burst

DISK DRIVE OPERATION
t
RP
t
RFS
99