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MSP-EXP430F5529 Hardware

4.4.5

Three-Axis Accelerometer

The MSP-EXP430F5529 Experimenter Board includes a VTI digital three-axis accelerometer (part number

CMA3000-D01). The accelerometer supports SPI communication and outputs data for each X, Y and Z

axis. The accelerometer is powered through pin P3.6. This interface, especially in conjunction with other

on-board interfaces such as the LCD, enables several potential applications such as USB mouse

movement emulation and tilt sensing. The example software used the accelerometer for the Tilt Puzzle,

Demo Cube, and USB Mouse. For more information on the accelerometer chip, see the manufacturer's

data sheet (http://www.vti.fi).

4.4.6

Pin Access Headers

The MSP-EXP430F5529 Experimenter Boards includes three headers (J4, J5, and J12) that can be used

as additional connections to external hardware or for signal analysis during firmware development. All pins

except the GND pin are internally selectable as either general purpose input/output pins or as described in

the device datasheet.

Table 3. Pinning Mapping for Header J4

Pin Description

Port Pin

Port Pin

Pin Description

Vcc

VCC

P6.6

CB6 / A6

UCA1RXD / UCA1SOMI

P4.5

P8.1

GPIO

– LED2

UCA1TXD / UCA1SIMO

P4.4

P8.2

GPIO

– LED3

GPIO

P4.6

P8.0

GPIO

– POT

GPIO

P4.7

P4.5

UCA1RXD / UCA1SOMI

A9 / VREF- / VeREF-

P5.1

P4.4

UCA1TXD / UCA1SIMO

GND

GND

P6.7

CB7 / A7

Table 4. Pin Mapping for Header J5

Pin Description

Port Pin

Port Pin

Pin Description

VCC

VCC

P7.0

CB8 / A12

UCB1SOMI / UCB1SCL - SD

P4.2

P7.1

CB9 / A13

UCB1SIMO / UCB1SDA - LCD/SD

P4.1

P7.2

CB10 / A14

UCB1CLK / UCA1STE - LCD/SD

P4.3

P7.3

CB11 / A15

UCB1STE / UCA1CLK - RF

P4.0

P4.1

UCB1SIMO / UCB1SDA - LCD/SD

TB0OUTH / SVMOUT - SD

P3.7

P4.2

UCB1SOMI / UCB1SCL - SD

GND

GND

P7.7

TB0CLK / MCLK

Table 5. Pin Mapping for Header J12

Pin Description

Port Pin

Port Pin

Pin Description

(RF_STE)

P2.6

P3.0

(RF_SIMO)

(RF_SOMI)

P3.1

P3.2

(RF_SPI_CLK)

TA2.0

P2.3

P2.1

TA1.2

TB0.3

P7.5

GND

GND

GPIO

P4.7

P2.4

TA2.1

(RXD)

P4.5

P4.6

GPIO

(TXD)

P4.4

P4.0

UCx1xx

(LED1)

P1.0

P2.0

TA1.1

GND

GND

RF_PWR

RF_PWR

23

SLAU330A

– May 2011 – Revised June 2011

MSP-EXP430F5529 Experimenter Board

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