GPF16064B

© Generalplus Technology Inc.

Proprietary & Confidential

4

Oct. 31, 2011

Version: 1.4

4. SIGNAL DESCRIPTIONS

Mnemonic

PIN No.

Type

Description

VDD

12, 13, 39

40, 74, 75

P

Digital Power input

VSS

14, 15, 37

38, 70, 71

P

Digital Ground pin

AVDD

28, 57, 63

P

Analog power input

AVSS

25, 60, 61, 66

P

Analog ground pin

IRQ1B

68

I

External IRQ 1

IRQ2B

69

I

External IRQ 2

RESET

67

I

System reset (Low active)

IOA[15:0]

41 - 56

I/O

GPIO A, Bit 0-7 could be used as ADC input

IOB[15:0]

16 - 24

29 - 35

I/O

GPIO B

IOC[10:0]

1 - 11

I/O

GPIO C

FP

77

I/O

LCD interface frame pulse, GPIO D0

LD

79

I/O

LCD interface latch data pulse, GPIO D1

CP

80

I/O

LCD interface clock signal, GPIO D2

DI

81

I/O

LCD interface data signal, GPIO D3

FM

78

I/O

LCD interface frame signal, GPIO D4

DCCLK

76

I/O

LCD interface DC-DC clock signal, GPIO D5

XTAL1

26

I

External crystal input, should be 6MHz

XTAL2

27

O

External crystal output

X32KI

73

I

External 32768Hz crystal input

X32KO

72

O

External 32768Hz crystal output

AUDL

64

O

Audio left channel output

AUDR

62

O

Audio right channel output

ADACVREF

65

I

Audio DAC reference voltage

VCM

59

O

ADC reference voltage output

VRT

58

I

ADC reference voltage input

TEST

36

I

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