SPL10A1

3

PIN DESCRIPTION

PIN NAME

I/O

DESCRIPTION

SEG0 - SEG31

O

LCD driver segment output

COM0 - COM3

O

LCD driver common output

IOAB0 - IOAB1

I/O

I/O port

IOEF0 - IOEF5

I

INPUT port (also for key wake input)

IOCD0 - IOCD3

I/O

I/O port

ROSC

I

R-osc input, connect to VDD through resistor

RESET

I

System reset input

AUD

O

Current DA output /Tone output

X32I

I

32.768KHz crystal input/R oscillator input

(provide LCD frequency)

X32O

O

32.768KHz crystal output

TEST

I

Test input

VDD

I

Power input

VSS

I

Ground input

VDD1

I

Inputs for setting LCD bias

VDD2

I

Inputs for setting LCD bias

CUP1

I

Input for maintaining 1/3 Bias LCD

CUP2

I

Input for maintaining 1/3 Bias LCD

FUNCTION DESCRIPTION

„ROM

The SPL10A1 has 7.5K bytes ROM size. The user can has 7K bytes for program and

data. The other 0.5K bytes are for SUPLUS internal test use. The ROM address is from

$0200 to $1FFF.

„RAM

The SPL10A1 has 96 bytes RAM size. This area is all for data storage. The RAM address

is from $00A0 to $00FF.