GPF16064C

© Generalplus Technology Inc.

Proprietary & Confidential

4

MAY 10, 2007

Version: 1.2

4. SIGNAL DESCRIPTIONS

Mnemonic

PIN No.

Type

Description

VDD

4, 15, 35, 42

P

Digital Power input

VSS

3, 14, 32, 43

P

Digital Ground pin

AVDD

2, 27

P

Analog power input

AVSS

31, 54

P

Analog ground pin

IRQ1B

24

I

External IRQ 1

IRQ2B

23

I

External IRQ 2

RESET

25

I

System reset (Low active)

IOA[15:0]

5 - 22

I/O

GPIO A

IOB[15:0]

53 - 36

I/O

GPIO B

XTAL1

55

I

External crystal input, should be 6MHz

XTAL2

1

O

External crystal output

X32KI

33

I

External 32768Hz crystal input

X32KO

34

O

External 32768Hz crystal output

AUDL

28

O

Audio left channel output

AUDR

30

O

Audio right channel output

ADACVREF

29

I

Audio DAC reference voltage

TEST

26

I

Connected to GND for test mode, normally connected to VDD (test mode disabled)