Specifications

ATmega128RFA1 Port mappings
ProcessorPortPin SNAPpyIOProcessorPortPin SNAPpyIO
PB0PCINT0 0PE3RTS0OC3AAIN0 19
PB1PCINT1 1PE4INT4OC3B 20
PB2PCINT2 2PE5INT5OC3C 21
PB3PCINT3 3 PE6INT6 22
PB4PCINT4OC2 4PE7INT7ICP3 23
PB5PCINT5OC1A 5PF0ADC0I
2
C_SCL 24
PB6PCINT6OC1B 6PF1ADC1I
2
C_SDA 25
PB7PCINT7OC1COC0A 7PF2ADC2 26
PD0INT0 8PF3ADC3 27
PD1INT1 9

PF4ADC4 28
PD2INT2RXD1 10

PF5ADC5 29
PD3INT3TXD1 11

PF6ADC6 30
PD4CTS1ICP1 12

PF7ADC7 31
PD5RTS1 13

PG0 32
PD6 14

PG1 33
PD7 15

PG2 34
PE0RXD0PCINT8 16

PG3 35
PE1TXD0 17

PG4 36
PE2CTS0 18

PG5OC0B 37
More “Wakeup” Pins
On an ATMEL ATmega128RFA1 Wireless Module, any of the following IOs can be used to wake the
processor:
IO0 –IO7: Map to PCINT0 – PCINT7
IO8 –IO11: Map to INT0 – INT3
IO16: Maps to PCINT8
IO20 –IO23: Map to INT4 – INT7
Analog Input Pins
On the ATmega128RFA1 Wireless Module, the physical ADC inputs map to IO24 through IO31.
These correspond to processor pins PF0-PF7.
Page 154 of 202 SNAP Reference Manual Document Number 600-0007K