User's Manual

ZigBee- Ready RF Transceiver Module CTL3576/7/8/9
Copyright © 2011 Computime Limited. All rights reserved. Rev. 1
PB3 PB3 PB3 PB3 I/O
Digital I/O
TIM2C3 TIM2C3 TIM2C3 TIM2C3 O Timer 2 channel 3 output
TIM2C3 TIM2C3 TIM2C3 TIM2C3 I Timer 2 channel 3 input
SC1nCTS SC1nCTS SC1nCTS SC1nCTS I
UART CTS handshake of
Serial Controller 1
SC1SCLK SC1SCLK SC1SCLK SC1SCLK O
SPI master clock of serial
Controller 1
11
SC1SCLK SC1SCLK SC1SCLK SC1SCLK I
SPI slave clock of serial
Controller 1
12 GND GND GND GND
PC6 PC6 PC6 PC6 I/O Digital I/O
OSC32B OSC32B I/O 32.768KHz crystal oscillator
13
NTX_ACTIVE NTX_ACTIVE NTX_ACTIVE NTX_ACTIVE O Inverted TX_ACTIVE signal
PC7 PC7 PC7 PC7 I/O
Digital I/O
OSC32A OSC32A I/O 32.768KHz crystal oscillator
14
OSC32_EXT OSC32_EXT OSC32_EXT OSC32_EXT I
Digital 32.768KHz clock input
source
15 GND GND GND GND
16 VDD_PADS VDD_PADS VDD_PADS VDD_PADS Power Pads supply(2.1-3.6V)
17 nRESET nRESET nRESET nRESET I
Active low chip reset(internal
pull-up)
Pin# CTL3576 CTL3577 CTL3578 CTL3579 Direction Description
18
PA0 PA0 PA0 PA0 I/O
Digital I/O