Ultra Dma Data Transfer; Initiating An Ultra Dma Data In Burst; Figure 5.11 Initiating An Ultra Dma Data In Burst - Fujitsu MHT2080AH - 80GB 5400 RPM PATA Hard Drive Product Manual

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5.6.3 Ultra DMA data transfer

Figures 5.11 through 5.20 define the timings associated with all phases of Ultra
DMA bursts.
Table 5.23 contains the values for the timings for each of the Ultra DMA Modes.

5.6.3.1 Initiating an Ultra DMA data in burst

5.6.3.2 contains the values for the timings for each of the Ultra DMA Modes.
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
not in effect until DMARQ and DMACK- are asserted.

Figure 5.11 Initiating an Ultra DMA data in burst

5-132
t
UI
t
t
ACK
ENV
t
ACK t
ENV
t
ZIORDY
t
AZ
t
ACK
t
FS
t
ZAD
t
FS
t
ZAD
t
ZFS
t
DZFS
t
VDS
C141-E195-02EN
t
DVH