4 PERIPHERAL CIRCUITS

Register name

Address

Bit

Name

Function

 

Setting

 

Init.

R/W

Remarks

 

 

 

 

 

 

 

 

 

 

 

 

 

LCDC

039FFFD

D7

VRAMAR

VRAM area select

1

Area 8

0

 

Area 7

0

R/W

 

system control

(B)

D6

VRAMWT2

VRAM wait control

 

0–7

 

0

R/W

 

register

 

D5

VRAMWT1

(number of wait cycles for SRAM)

 

 

 

 

 

0

 

 

 

 

D4

VRAMWT0

 

 

 

 

 

 

0

 

 

 

 

D3

EDMAEN

External DMA enable

1

Enabled

0

 

Disabled

0

R/W

 

 

 

D2

BREQEN

External bus-request enable

1

Enabled

0

 

Disabled

0

R/W

 

 

 

D1

LCDCST

A0/BSL select

1

BSL

0

 

A0

0

R/W

 

 

 

D0

LCDCEC

Big/little endian select

1

Big endian

0

 

Little endian

0

R/W

 

A-64

EPSON

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