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FUJITSU MHV2120AT User Manual

Page 237

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5.6 Timing

C141-E218

5-161

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 5.18 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

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