User Manual

RF220SU
Pin
Pin Name
SNAPpy
IO
ATmega128RFA1 Pin
Name
Pin Description
5 GPIO3 16 PE0_RXD0_PDI_PCINT8 IO or UART0 Rx or Interrupt
6 GPIO4 17 PE1_TXD0 IO or UART0 Tx
7 GPIO5 20 PE4_CTS0_OC3B_INT4
IO or UART0 CTS Output or PWM
or Interrupt
8 GPIO6 21 PE5_RTS0_OC3C_INT5
IO or UART0 RTS Input or PWM or
Interrupt
9 GPIO7 10 PD2_RXD1_INT2 IO or UART1 Rx or Interrupt
10 GPIO8 11 PD3_TXD_INT3
IO or UART1 Data Out or
Interrupt
11 GPIO9 12 PD4_CTS1_ICP1
IO or UART1 CTS output or Input
Capture
12 GPIO10 23 PE7_RTS1_ICP3_INT7_CLK0
IO or UART1 RTS input or Clock
Output Buffer or Interrupt
13 GPIO11 24 PF0_ADC0 IO or Analog0
14 GPIO12 25 PF1_ADC1
IO or Analog1 or software SPI
MOSI
15 GPIO13 26 PF2_ADC2_DIG2
IO or Analog2 or software SPI
CLK1 or Antenna Diversity
Control
16 GPIO14 18 PE2_XCK0_AIN0
IO or software SPI1 MISO or
Analog Comparator or External
Clock
17 GPIO15 28 PF4_ADC4_TCK IO or Analog4 or JTAG Test Clock
18 GPIO16 29 PF5_ADC5_TMS
IO or Analog5 or JTAG Test Mode
Select