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5-5. I/O CONTROLLER (IC11)

5-5-1. MEMORY MAP

Character Generator

EPROM

4 Mbit

LCDC VRAM

256 Kbit

Not used

Not used (LCDC I/O)

LCDC I/O

FFFFF

80000

30000

28010

28000

20000

00000

ADDRESS R/W FUNCTION REMARK

~ 28000H –

D0 RAMS

D1 LCDE

D2 4/8

D3 28001H W CRAY

D4 OR

D5 PANEL

D6 REV

D7 DISP

~ 28002H W C/R

~ 28003H W LPW

~ 28004H W SLTL

~ 28005H W SLTH

~ 28006H R/W SAD1L

~ 28007H R/W SAD1H

~ 28008H R/W SAD2L

~ 28009H R/W SAD2H

~ 2800AH W SL1L

~ 2800BH W SL1H

~ 2800CH –

~ 2800DH W APADJ

~ 2800EH W GS1

~ 2800FH W GS2

SYSTEM RAM

(0FFD0 ~ 0FFDF : External I/O)

Gradation conversion code

Set up basic performance mode for

SED1353.

Number of horizontally displayed

characters per 1 line

Pulse width of LP per 1 line

Number of vertical lines in the LCD

(lower 8 bit)

Number of vertical lines in the LCD

(upper 2 bit)

Start address in the first screen (lower 8 bit)

Start address in the first screen (upper 8 bit)

Start address in the second screen

(lower 8 bit)

Start address in the second screen

(upper 8 bit)

Number of vertical lines in the fist screen

(lower 8 bit)

Number of vertical lines in the fist screen

(lower 8 bit)

Address pitch adjust in the virtual screen

Brand	Casio
Model	QT-2100
Category	Cash Register
Language	English

Casio QT-2100 Service Manual

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