GPC11501C

© Generalplus Technology Inc.

Proprietary & Confidential

4

May 08, 2014

Version: 1.7

5. SIGNAL DESCRIPTIONS

Mnemonic

PIN No

LQFP 44

Package No

Type

Description

VDD1

1

1

I

Digital Power Pad

VSS1

10

10

I

Digital Ground

VDD2

19

22

I

Digital Power Pad

VSS2

15

18

I

Digital Ground

VDD3

20

23

I

Digital Power Pad

VSS3

37

38

I

Digital Ground

VPP

38

40

I

High voltage input for EPROM programming use, keep it floating in

normal run.

V30_REG

39

41

O

3.3v Regulator output Power Pad

Need connect it with one 10uF capacitor to Ground.

V50_REG

40

42

I

Regulator Power Pad

VSS_REG

41

43

I

Regulator Ground

EPM

42

44

I

Connect it to VDD during OTP programming cycle, keep it floating

in normal run.

PVDD

12

12

I

PWM Power Pad

PVSS

13

13

I

PWM Ground

CI

18

21

I

ROSC Resistor input (Resistor must be connected to VDD)

RESB

17

20

I

Reset pin, active low to reset whole system

TEST

16

19

I

Test pin, NC

AUDP

14

17

O

Audio output

AUDN

11

11

O

Audio output

IOB0

IOB1

IOB2

IOB3

IOB4

IOB5

IOB6

IOB7

21

22

23

24

25

26

27

28

-

-

-

-

24

25

26

27

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

Nibble-controlled programmable I/O pins

In input mode, port B can be either pure or pull-low states. In

output mode, port B can be buffer.

IOC0

IOC1

IOC2

IOC3

IOC4

IOC5

IOC6

IOC7

29

30

31

32

33

34

35

36

28

29

30

31

32

33

34

35

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

Nibble-controlled programmable I/O pins

In input mode, port C can be either pure or pull-low states. In

output mode, port C can be buffer.

IOC[3:0] can drive high brightness LED

IOD0

IOD1

IOD2

IOD3

IOD4

IOD5

IOD6

IOD7

2

3

4

5

6

7

8

9

2

3

4

5

6

7

8

9

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

Bit-controlled programmable I/O pins

In input mode, port D can be either pure or pull-low states

In output mode, port D can be buffer

Port D are the key wakeup I/O pins

IOD4: feedback input of clock generator

IOD5: feedback output of clock generator

IOD6: external interrupt

IOD7: IR transmitter