Atmel Data Gateway Interface - Atmel SAM4N Xplained Pro User Manual

Table 4-12. Virtual COM port connections
Pin on SAM4N
PA10
PA9
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 SAM4N to the host PC. For further information on
how to use the DGI interface see
Table 4-13. DGI interface connections when using USART
Pin on SAM4N
PC10
PC9
PC14
Table 4-14. DGI interface connections when using TWI
Pin on SAM4N
PB0
PB1
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 SAM4N application
code. For further information on how to configure and use the GPIO monitoring features see
Debugger" on page
Table 4-15. GPIO lines connected to the EDBG
Pin on SAM4N
PC21
PC20
PC19
PC18
"Embedded Debugger" on page
6.
Function
UART TXD (SAM4N TX line)
UART RXD (SAM4N RX line)
6.
Function
USART TXD (SAM4N TX line)
USART RXD (SAM4N RX line)
USART CLK
Function
SDA (Data line)
SCL (Clock line)
Function
GPIO0
GPIO1
GPIO2
GPIO3
Atmel SAM4N Xplained Pro [USER GUIDE]
"Embedded
13
42104A-MCU-06/2013