6

AVR32918

32159A-AVR-01/11

Table 4-4. UC3 I/O expansion header – J3.

Pin

J3

UC3 pin

Shared with onboard functionality

1

GPIO0

PA31

-

2

GPIO1

PA30

-

3

GPIO2

PA29

-

4

GPIO3

PA28

-

5

GPIO4

PA27

-

6

GPIO5

PB00

-

7

GPIO6

PB04

-

8

GPIO7

PX19

-

9

GND

-

-

10

VCC_P5V0

(1)

-

-

Note:

1. The VCC pin on this header has 5V and is connected to the USB power.

Table 4-5. UC3 I/O expansion header – J4.

Pin

J4

UC3 pin

Shared with onboard functionality

1

TWI1 SDA

PA15

USART1 CTS

2

TWI1 SCL

PA14

USART1 RTS

3

USART1 RXD

PA05

-

4

USART1 TXD

PA06

-

5

SPI0 CS3

PA07

-

6

SPI0 MOSI

PA10

Serial flash/DataFlash

7

SPI0 MISO

PA11

Serial flash/DataFlash

8

SPI0 SCK

PA08

Serial flash/DataFlash

9

GND

-

-

10

VCC_P3V3

-

-