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9 device pausing an ultra dma data out burst – FUJITSU MPG3XXXAH-E User Manual

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5.6.3.9 Device pausing an Ultra DMA data out burst

5.6.3.2 contains the values for the timings for each of the Ultra DMA Modes.

Notes:

1)

The device may negate DMARQ to request termination of the Ultra DMA burst no sooner
than t

RP

after DDMARDY- is negated.

2)

After negating DDMARDY-, the device may receive zero, one two or three more data
words from the host.

Figure 5.17 Device pausing an Ultra DMA data out burst

DMARQ
(device)

DMACK-
(host)

STOP
(host)

DDMARDY-
(device)

HSTROBE
(host)

DD(15:0)
(host)

t

RP

t

RFS