Pin on EXT4

SAM G55 pin

SAM G55 Peripheral

Function

Shared Functionality

8 [PWM(-)]

-

-

9 [IRQ/GPIO]

PB14

-

10 [SPI_SS_B/GPIO]

-

-

11 [TWI_SDA]

PB10

TWD4

EDBG and EXT1 connector

(TWI)

12 [TWI_SCL]

PB11

TWCK1

EDBG and EXT1 connector

(TWI)

13 [USART_RX]

-

-

14 [USART_TX]

-

-

15 [SPI_SS_A]

-

-

16 [SPI_MOSI]

-

-

17 [SPI_MISO]

-

-

18 [SPI_SCK]

-

-

19 [GND]

-

-

GND

20 [VCC]

-

-

VCC

4.1.2.

High Speed TWI Interface

available. The GPIO can serve as a IRQ to the host and the reset can be used by the host to reset the

SAM G55.

Connector

Pin on SAM G55

SAM G55

Peripheral

Function

Shared Functionality

1

-

-

2

PA01

NCHG

TIOB0

3

PA16

GPIO

WKUP7

4

RESET

Reset

5

PA03

TWD0

6

PA04

TWCK0

7

-

-

VCC

8

-

-

GND

Atmel SAM G55 Xplained Pro [USER GUIDE]

Atmel-42389B-SAM-G55-Xplained-Pro_User Guide-04/2016

13