GPL083B1

© Generalplus Technology Inc.

Proprietary & Confidential

4

Aug. 26, 2015

Version: 1.0

4. SIGNAL DESCRIPTIONS

Mnemonic

Type

Description

SEG[49:0]

O

LCD driver segment output.

COM[3:0]

O

LCD driver common output.

PA[1:0]

I/O

GPIO I/O port.

PC[7:0]

I/O

GPIO I/O port.

PE[7:0]

I

Input port. (also for key wake up input)

ACON

I

Clear or system power on pin (active low) and 4ms de-bounce circuit inside.

PTEST

I

Test mode input pin. (active high)

VS

I

Solar cell power input.

VB

I

Battery power input.

VDDSW

O

Power switch output.

VREG

O

Internal regulator output.

VSS

I

Ground input.

V1X

V2X

V3X

O

VLCD generator output.

CUP1

CUP2

I

Inputs for setting LCD bias.