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2 multiword data transfer – FUJITSU MHV2120AT User Manual

Page 226

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Interface

5-150

C141-E218

5.6.2 Multiword data transfer

Figure 5.10 shows the multiword DMA data transfer timing between the device
and the host system.

DMACK-

t

D

DIOR-/DIOW-

t

I

Symbol Timing

parameter Min.

Max.

Unit

t0

Cycle time

120

ns

tD

Pulse width of DIOR-/DIOW-

70

ns

tE

Data Access time for DIOR-

50

ns

tF

Data hold time for DIOR-

5

ns

tG

Data setup time for DIOR-/DIOW-

20

ns

tH

Data hold time for DIOW-

10

ns

tI

DMACK setup time for DIOR-/DIOW-

0

ns

t

CS (1:0) Available time for DIOR-/DIOW-

25

ns

Figure 5.10 Multiword DMA data transfer timing (mode 2)

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