User manual

Atmel SAM4E Xplained Pro [USER GUIDE]

42216A-MCU-01/2014

Table 4-17. Virtual COM Port Connections

Pin on SAM4E Function

PA9 URXD0 (SAM4E RX line)

PA10 UTXD0 (SAM4E TX line)

4.3.3 Atmel Data Gateway Interface

The Embedded Debugger features an Atmel Data Gateway Interface (DGI) by using either a USART or TWI

port. The DGI can be used to send a variety of data from the SAM4E to the host PC. For further information on

how to use the DGI interface see “Embedded Debugger” on page 6.

Table 4-18. DGI Interface Connections When Using USART

Pin on SAM4E Function

PB0 RXD0

PB1 TXD0

PB13 SCK0

Table 4-19. DGI Interface Connections When Using TWI

Pin on SAM4E Function

PA3 SDA (Data line)

PA4 SCL (Clock line)

Four GPIO lines are connected to the Embedded Debugger. The EDBG can monitor these lines and time

stamp pin value changes. This makes it possible to accurately time stamp events in the SAM4E application

code. For further information on how to configure and use the GPIO monitoring features see “Embedded

Debugger” on page 6.

Table 4-20. GPIO Lines Connected To the EDBG

Pin on SAM4E Function

PD27 GPIO0

PE3 GPIO1

PE4 GPIO2

PE2 GPIO3