AVR32924

32156A-AVR-01/11

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

Pin

J3

UC3 pin

Shared with onboard functionality

1

PWM0

PA13

RGB LED (RED), RC filter input

2

PWM1

PA17

RGB LED (GREEN)

3

PWM2

PA20

RGB LED (BLUE)

4

PWM3

PA22

QMatrix slider X2

5

PWM4

PB12

QTouch SNS

6

PWM5

PB09

QTouch SNSK

7

PWM6

PB04

LED1

8

PWM7

(1)

PA11

LED0, mechanical button

9

GND

-

-

10

VCC_P5V0

(2)

-

-

Notes:

1. Mechanical button and LED0 are sharing I/O. Use input with pull-up to turn off

LED, and output low to turn on LED.

2. 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

TWI SDA

PA21

Header J1, board controller

2

TWI SCL

PB05

Header J1, board controller

3

UART RX

PB11

Header J1

4

UART TX

PB10

Header J1

5

SPI CS4

PB00

-

6

SPI MOSI

PB03

Header J1, DataFlash

7

SPI MISO

PB02

Header J1, DataFlash

8

SPI SCK

PB01

Header J1, DataFlash

9

GND

-

-

10

VCC_P3V3

-

-