GPBA02A

© Generalplus Technology Inc.

Proprietary & Confidential

4

JAN. 06, 2011

Version: 1.6

4. SIGNAL DESCRIPTIONS

Mnemonic

PIN No.

Package

PIN No.

Type

Description

DEVICE

34

30

I

Device select signal, optional. (Device is defaulted as 0 when DEVICE pin is

floating)

CSB

33

29

I

Chip select signal for SPI interface, low active.

SCK

31

27

I

Clock signal for SPI interface.

MOSI

30

26

I

Data input pin for SPI interface.

MISO

32

28

O

Data output pin for SPI interface.

PA [7:0]

2-9

42-35

I/O

General-purpose inputs/outputs, software command configurable.

Belong to VDDIOA power group.

PB [7:0]

10, 12-16,

18-19

13-12, 8-4,

43

I/O

General-purpose inputs/outputs, software command configurable.

PB0 belong to VDDIOA power group, PB[7:1] belong to VDDIOC power group.

PC[7:0]

20-27

21-14

I/O

General-purpose inputs/outputs, software command configurable.

Belong to VDDIOC power group.

VDD

35

31

P

Digital circuit power input.

VSS

29

25

P

Digital circuit ground input.

VDDIO_A

1

34

P

Port A and Port B circuit power input, supply power for PA[7:0] and PB0.

VSSIO

11, 28

3, 22

P

Port A, Port B, Port C circuit ground input.

VDDIO_C

17

9

P

Port B and Port C circuit power input, supply power for PB[7:1] and PC[7:0].