At sdram page hit (shortest) – FUJITSU MB91460 SERIES FR60 User Manual

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Chapter 31 External Bus

10.DMA Access Operation

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At SDRAM page hit (Shortest)

Figure 10-4 Timing Chart for DMA Fly - by Transfer (SDRAM/FCRAM to I/O) with Page Hits (Shortest)

column
address

IOWR

DACKn

DEOPn

DREQn

Basic
mode

MCLK

CSn

SCAS

A31 to 0

D31 to 0

WRn(SWE)

SRAS

basic cycle

I/O wait
cycle

I/O hold
wait

MCLKE

I/O

basic cycle

SDRAM

Data setup