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| SLAU330A Datasheet, PDF (23/36 Pages) Texas Instruments – MSP-EXP430F5529 Experimenter Board | |||
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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.
Pin Description
Vcc
UCA1RXD / UCA1SOMI
UCA1TXD / UCA1SIMO
GPIO
GPIO
A9 / VREF- / VeREF-
GND
Table 3. Pinning Mapping for Header J4
Port Pin
VCC
P4.5
P4.4
P4.6
P4.7
P5.1
GND
Port Pin
P6.6
P8.1
P8.2
P8.0
P4.5
P4.4
P6.7
Pin Description
CB6 / A6
GPIO â LED2
GPIO â LED3
GPIO â POT
UCA1RXD / UCA1SOMI
UCA1TXD / UCA1SIMO
CB7 / A7
Pin Description
VCC
UCB1SOMI / UCB1SCL - SD
UCB1SIMO / UCB1SDA - LCD/SD
UCB1CLK / UCA1STE - LCD/SD
UCB1STE / UCA1CLK - RF
TB0OUTH / SVMOUT - SD
GND
Table 4. Pin Mapping for Header J5
Port Pin
VCC
P4.2
P4.1
P4.3
P4.0
P3.7
GND
Port Pin
P7.0
P7.1
P7.2
P7.3
P4.1
P4.2
P7.7
Pin Description
CB8 / A12
CB9 / A13
CB10 / A14
CB11 / A15
UCB1SIMO / UCB1SDA - LCD/SD
UCB1SOMI / UCB1SCL - SD
TB0CLK / MCLK
Pin Description
(RF_STE)
(RF_SOMI)
TA2.0
TB0.3
GPIO
(RXD)
(TXD)
(LED1)
GND
Table 5. Pin Mapping for Header J12
Port Pin
P2.6
P3.1
P2.3
P7.5
P4.7
P4.5
P4.4
P1.0
GND
Port Pin
P3.0
P3.2
P2.1
GND
P2.4
P4.6
P4.0
P2.0
RF_PWR
Pin Description
(RF_SIMO)
(RF_SPI_CLK)
TA1.2
GND
TA2.1
GPIO
UCx1xx
TA1.1
RF_PWR
SLAU330A â May 2011 â Revised June 2011
MSP-EXP430F5529 Experimenter Board
23
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Copyright © 2011, Texas Instruments Incorporated
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