Atmel SAM4L8 Xplained Pro User Manual page 12

Pin on EXT2 SAM4L8 pin
9 PC06
10 PC09
11 PB14
12 PB15
13 PC26
14 PC27
15 PB11
16 PA22
17 PA21
18 PC30
19 -
20 -
Table 4-3. Extension header EXT3.
Pin on EXT3 SAM4L8 pin
1 -
2 -
3 PB03
4 PB04
5 PC15
6 PC16
7 PA08
8 PA09
9 PA06
10 PA10
11 PB14
12 PB15
13 PC26
14 PC27
15 PA17
16 PA20
17 PA19
18 PA18
19 -
20 -
Table 4-4. Extension header EXT4.
Pin on EXT4 SAM4L8 pin
1 -
2 -
3 PB05
4 PC10
5 PC17
6 PC18
Function Shared functionality
EIC/EXTINT[8]
GPIO
TWIMS/3/TWD EXT3, EXT4 and LCD connector (EXT5)
TWIMS/3/TWCK EXT3, EXT4 and LCD connector (EXT5)
USART/1/RXD EXT3 and LCD connector (EXT5)
USART/1/TXD EXT3 and LCD connector (EXT5)
SPI/NPCS[2] LCD connector (EXT5)
SPI/MOSI EXT1 and LCD connector (EXT5)
SPI/MISO EXT1 and LCD connector (EXT5)
SPI/SCK EXT1 and LCD connector (EXT5)
- GND
- VCC
Function Shared functionality
- Communication line to ID chip on
extension board.
- GND
ADCIFE/AD[4]
ADCIFE/AD[5]
GPIO LCD connector (EXT5)
GPIO LCD connector (EXT5)
TC/0/A0 LCD connector (EXT5)
TC/0/B0 LCD connector (EXT5)
EIC/EXTINT[1]
GPIO LCD connector (EXT5)
TWIMS/3/TWD EXT2, EXT4 and LCD connector (EXT5)
TWIMS/3/TWCK EXT2, EXT4 and LCD connector (EXT5)
USART/1/RXD EXT2 and LCD connector (EXT5)
USART/1/TXD EXT2 and LCD connector (EXT5)
GPIO LCD connector (EXT5)
UART/2/TXD EXT4 and LCD connector (EXT5)
UART/2/RXD EXT4 and LCD connector (EXT5)
UART/2/CLK EXT4 and LCD connector (EXT5)
- GND
- VCC
Function Shared functionality
- Communication line to ID chip on
extension board.
- GND
ADCIFE/AD[6]
ADCIFE/AD[7] USB_ID
GPIO LCD connector (EXT5)
GPIO LCD connector (EXT5)
Atmel SAM4L8 Xplained Pro [USER GUIDE] 12
42103A-MCU-06/2013