Panasonic MN103001G/F01K User Manual

Page 179

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Bus Controller (BC)

8-65

8.14.2

DRAM page mode

If the PAGE bit in the DRAM control register is set to “1”, page mode access is enabled, making high-speed access
in page mode possible for following accesses to DRAM.

(1) Word/half-word access when the bus width is set to 8 bits
(2) Word access when the bus width is set to 16 bits

Fig. 8-14-5 shows the page mode read timing and write timing.

(b)

Write Timing

Fig. 8-14-5

DRAM Page Mode Read/Write Timing

For details on the various timing settings, refer to the description of the memory control register in section 8.6,
“Description of Registers.”

(a)

Read Timing

MCLK

An

RASn

CAS

RE

Dn

ASR

CAO

Row

C

olumn

CAS

RSH

C

olumn

CAS

ASC

ASC

MCLK

An

RASn

CAS

WE

n

Dn

CAO

ASR

ASC

CAS

C

olumn

ASC

RSH

C

olumn

CAS

Row

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