The board controller and the Atmel AT32UC3L064 are connected together through TWI and
UART. Both interfaces can be used to communicate between the devices, but only the UART is
implemented by default in the board controller.
Table 8. AT32UC3L064 and board controller communication interface
|
Interface
|
Atmel AT32UC3L064 pin
|
Atmel AT32UC3B1256 pin
|
|---|
|
UART RX
|
PA07
|
PA24
|
|
UART TX
|
PA06
|
PA23
|
|
TWI SCL
|
PB05
|
PA09
|
|
TWI SDA
|
PA21
|
PA10
|