User's Manual

MPR/MIB User’s Manual
Page 32 Doc. # 7430-0021-07 Rev. B
8
g
LED3 Green LED 34 PW5 GPIO/PWM
9
g
LED2 Yellow LED 35 PW6 GPIO/PWM
10
g
LED1 Red LED 36
g
ADC7 GPIO/ADC CH7, JTAG
11 RD GPIO 37
g
ADC6 GPIO/ADC CH6, JTAG
12 WR GPIO 38
g
ADC5 GPIO/ACD CH5, JTAG
13 ALE GPIO 39
g
ADC4 GPIO/ADC CH4, JTAG
14 PW7 GPIO 40 ADC3 GPIO/ADC CH3
15 USART_CLK USART Clock 41 ADC2 GPIO/ADC CH2
16
gg
PROG_MOSI Programmer Pin 42 ADC1 GPIO/ADC CH1
17
gg
PROG_MISO Programmer Pin 43 ADC0 GPIO/ADC CH0
18
gg
SPI_CLK Radio Clock 44 THERM_PWR GPIO
19 USART1_RXD USART1 Receive 45 THRU1 Thru User Connect
20 USART1_TXD USART1 Transmit 46 THRU2 Thru User Connect
21 I2C_CLK I2C Bus Clock 47 THRU3 Thru User Connect
22 I2C_DATA I2C Bus Data 48
gg
RSTN Micro Processor Reset
23 PWMIO GPIO 49 PWM1B GPIO
24 PWMIA GPIO 50 VCC Voltage (battery)
25 AC+ GPIO 51 GND Ground
26 AC- GPIO
(gOK to use but has shared functionality. ggDo not use)
11.3 MICA2DOT Expansion Connector
The interface to the MPR500 is through a series of 19 pins Elpacko spaced around the
circumference of the MPR5x0 Mote. (They represent a subset of the pins available on the
MPR5x0.) They include a set of power control pins, ADC channels, power, ground, some
general purpose digital IO, and the serial programming port. For applications with more digital
IO, the ADC pins can be reconfigured as digital input/output but
not both.
0 WARNING: The TP12 (SPI_CK) pin is controlled by the Radio. In the majority of applications it
should not be used. It is also used for programming the processor.