User's Manual

A8000 User Guide
Confidential
A8000_User_Guide_V1.0 Page 18 of 22 2009/05/13
9 KEYPADCOL3 Keypad array output3 GPIO CC interrupt input
10 KEYPADCOL4 Keypad array output4 GPIO CC interrupt input
11
KEYPADCOL5/KEYP
ADROW0
Keypad array output5 or
input1
GPIO CC interrupt input
12 KEYPADROW1 Keypad array input1 GPIO External interrupt input
13 KEYPADROW2 Keypad array input 2 GPIO
14 KEYPADROW3
Keypad array input 3 GPIO CC interrupt input
15 KEYPADROW4 Keypad array input 4 GPIO CC interrupt input
16 BACKLIGHT
Keypad or LCD
backlight led control
GPIO CC interrupt input
17 CLKOUT Clock out GPIO
18 VDD_LIO
Internal LDO
output:2.8V, 15mA
19 DATA_DCD
UART: Data Carrier
Detection
GPIO CC interrupt input
20 GND Ground
21 GND Ground
22 DATA_DTR UART: Data Set Ready GPIO External interrupt input
23 DATA_RI
UART: Ringing GPIO
24 DATA_CTS UART: Clear To Send GPIO External/CC interrupt input
25 DATA_RTS UART: Ready Ro Send GPIO CC interrupt input
26 DATA_RX UART: Received Data GPIO External interrupt input
27 DATA_TX
UART: Transmitted
Data
GPIO
28 WEN
Parallel port: write
enable
29 ADD_3 Parallel port: address3
30 ADD_2 Parallel port: address2
31 ADD_1 Parallel port: address1
32 OEN
Parallel port: read
enable
33 DATA00 Parallel port: data00