AVR32918

5

32159A-AVR-01/11

Pin

JTAG

(1)

9

TDI

10

GND

Note:

1. Standard pinout for JTAGICE mkII and other Atmel programming tools.

4.2 I/O expansion headers

There are four available I/O expansion headers on the kit. Some pins have shared

functionality with onboard functionality. If “clean” expansion ports are needed, there

are available cut-straps on some of the ADC inputs to remove onboard functionality.

Table 4-2 to Table 4-5 show what is shared on the header pins.

Table 4-2. UC3 I/O expansion header – J1.

Pin

J1

UC3 pin

Shared with onboard functionality

1

TWI0 SDA

PA25

-

2

TWI0 SCL

PA26

-

3

USART3 RXD

PX57

-

4

USART3 TXD

PX58

-

5

SPI1 CS0

PB09

-

6

SPI1 MOSI

PB10

-

7

SPI1 MISO

PB08

-

8

SPI1 SCK

PB07

-

9

GND

-

-

10

VCC_P3V3

-

-

Table 4-3. UC3 I/O expansion header – J2.

Pin

J2

UC3 pin

Shared with onboard functionality

1

ADC0

(1)

PA21

RC filter output

2

ADC1

(1)

PA22

NTC

3

ADC2

PA23

-

4

ADC3

PA24

-

5

ADC4

PA20

-

6

ADC5

PA19

-

7

ADC6

PA18

-

8

ADC7

PA17

-

9

GND

-

-

10

VCC_ANA_P3V3

-

-

Note:

1. ADC channels can be disconnected from onboard functions by cutting the

available cut-straps on the bottom side of the board.