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Developing With eZ430-RF2500T Target Board

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Table 1. eZ430-RF2500T Target Board Pinouts

Pin Function Description

1 GND Ground reference

2 VCC Supply voltage

3 P2.0 / ACLK / A0 / OA0I0 General-purpose digital I/O pin / ACLK output / ADC10, analog input A0

P2.1 / TAINCLK / SMCLK / A1 / General-purpose digital I/O pin / ADC10, analog input A1

A0O Timer_A, clock signal at INCLK, SMCLK signal output

General-purpose digital I/O pin / ADC10, analog input A2

5 P2.2 / TA0 / A2 / OA0I1

Timer_A, capture: CCI0B input/BSL receive, compare: OUT0 output

P2.3 / TA1 / A3 / VREF– / VeREF– General-purpose digital I/O pin / Timer_A, capture: CCI1B input, compare: OUT1

/ OA1I1 / OA1O output / ADC10, analog input A3 / negative reference voltage output/input

P2.4 / TA2 / A4 / VREF+ / VeREF+ General-purpose digital I/O pin / Timer_A, compare: OUT2 output /

/ OA1I0 ADC10, analog input A4 / positive reference voltage output/input

General-purpose digital I/O pin / ADC10 analog input A12 /

8 P4.3 / TB0 / A12 / OA0O

Timer_B, capture: CCI0B input, compare: OUT0 output

General-purpose digital I/O pin / ADC10 analog input A13 /

9 P4.4 / TB1 / A13 / OA1O

Timer_B, capture: CCI1B input, compare: OUT1 output

General-purpose digital I/O pin / ADC10 analog input A14 /

10 P4.5 / TB2 / A14 / OA0I3

Timer_B, compare: OUT2 output

General-purpose digital I/O pin / ADC10 analog input A15 /

11 P4.6 / TBOUTH / A15 / OA1I3

Timer_B, switch all TB0 to TB3 outputs to high impedance

12 GND Ground reference

13 P2.6 / XIN (GDO0) General-purpose digital I/O pin / Input terminal of crystal oscillator

14 P2.7 / XOUT (GDO2) General-purpose digital I/O pin / Output terminal of crystal oscillator

General-purpose digital I/O pin

15 P3.2 / UCB0SOMI / UCB0SCL

USCI_B0 slave out/master in when in SPI mode, SCL I2C clock in I2C mode

General-purpose digital I/O pin

16 P3.3 / UCB0CLK / UCA0STE

USCI_B0 clock input/output / USCI_A0 slave transmit enable

General-purpose digital I/O pin / USCI_B0 slave transmit enable / USCI_A0 clock

17 P3.0 / UCB0STE / UCA0CLK / A5

input/output / ADC10, analog input A5

General-purpose digital I/O pin / USCI_B0 slave in/master out in SPI mode, SDA I2C

18 P3.1 / UCB0SIMO / UCB0SDA

data in I2C mode

Table 2. Battery Board Pinouts

Pin Function Description

General-purpose digital I/O pin / USCI_A0 transmit data output in UART mode (UART

1 P3.4 / UCA0TXD / UCA0SIMO

communication from 2274 to PC), slave in/master out in SPI mode

2 GND Ground reference

Reset or nonmaskable interrupt input

3 RST / SBWTDIO

Spy-Bi-Wire test data input/output during programming and test

Selects test mode for JTAG pins on Port1. The device protection fuse is connected to

4 TEST / SBWTCK

TEST. Spy-Bi-Wire test clock input during programming and test

5 VCC (3.6V) Supply voltage

General-purpose digital I/O pin / USCI_A0 receive data input in UART mode (UART

6 P3.5 / UCA0RXD / UCA0SOMI

communication from 2274 to PC), slave out/master in when in SPI mode

8 eZ430-RF2500 Development Tool SLAU227E – September 2007 – Revised April 2009

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