User Manual

DRAFT COPY
Generated on
9/16/2014
SM220 Module Pin Definitions
For pin locations, consult the SM220 Mechanical drawing later in this document.
SM220
Pin
Pin Name Pin Description
A1 GND Power Supply
A2 VCC Power Supply
A3 VCC Power Supply
A4 PF0_ADC0 IO or Analog0
A5 PF2_ADC2_DIG2
IO or Analog2 or software SPI CLK
1
or Antenna Diversity
Control
A6 PF4_ADC4_TCK IO or Analog4 or JTAG Test Clock
A7 PF6_ADC6_TDO IO or Analog6 or JTAG Test Data Out or software I
2
C
1
SDA
A8 GND Power Supply
B1 PE2_XCK0_AIN0
IO or software SPI
1
MISO or Analog Comparator or External
Clock
B2 PE3_OC3A_AIN1 IO or Analog Comparator or PWM or Output Compare Match
B3 PE5_OC3C_INT5 IO or UART0 RTS Input or PWM or Interrupt
B4 PF1_ADC1 IO or Analog1 or software SPI
1
MOSI
B5 Test Point - Do Not Use
B6 PF5_ADC5_TMS IO or Analog5 or JTAG Test Mode Select
B7 PF7_ADC7_TDI IO or Analog7 or JTAG Test Data In or software I
2
C
1
SCL
B8 GND Power Supply
C1
PE0_RXD0_PDI_
PCINT8
IO or UART0 Data In or Interrupt
C2 PE1_TXD0_PDO IO or UART0 Data Out
C3 PE4_OC3B_INT4 IO or UART0 CTS Output or PWM or Interrupt
C4 PE6_T3_INT6 IO or Interrupt
C5 PE7_ICP3_INT7_CLK0 IO or UART1 RTS input or Clock Output Buffer or Interrupt
C6 PF3_ADC3_DIG4 IO or ADCchannel 3
Table 2: SM220UF1 Pin Assignments
1 Software generated SPIand I
2
C functions.
3
SNAP Engine SM220 Series Data Sheet — 430000-01A