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FUJITSU MB91460 SERIES FR60 User Manual

Page 612

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596

Chapter 31 External Bus

10.DMA Access Operation

Figure 10-3 Timing Chart for DMA Fly - by Transfer (I/O to SDRAM/FCRAM)

memory
address

DACKn

IORD

DEOPn

DACKn

DEOPn

DREQn

FR30
compatible
mode

Basic
mode

MCLK

AS

CSn

SCAS

A31 to 0

D31 to 0

WRn(SWE)

SRAS

Basic cycle

I/O wait
cycle

I/O hold
wait