Fujitsu MPG3XXXAT manual Host pausing an Ultra DMA data in burst

5.6.3.4Host pausing 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)

tRP

STOP

(host)

HDMARDY-

(host)

tRFS

DSTROBE

(device)

DD(15:0)

(device)

Notes:

1)The host may assert STOP to request termination of the Ultra DMA burst no sooner than tRP after HDMARDY- is negated.

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

Figure 5.12 Host pausing an Ultra DMA data in burst

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