Hardware User Guide; Connectors; Xplained Pro Standard Extension Headers - Atmel SAM4L Xplained Pro User Manual

4.

Hardware User Guide

4.1.

Connectors

This chapter describes the implementation of the relevant connectors and headers on SAM4L Xplained
Pro and their connection to the ATSAM4LC4C. The tables of connections in this chapter also describes
which signals are shared between the headers and on-board functionality.
4.1.1.

Xplained Pro Standard Extension Headers

The SAM4L Xplained Pro headers EXT1, EXT2, EXT3, and EXT4 offers access to the I/O of the
microcontroller in order to expand the board e.g. by connecting extensions to the board. These headers
all comply with the Xplained Pro standard extension header. All headers have a pitch of 2.54mm.
Table 4-1 Extension Header EXT1
Pin on EXT1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
SAM4L pin Function
- -
- -
PA04 ADCIFE/AD[0]
PA05 ADCIFE/AD[1]
PB12 GPIO
PC02 GPIO
PC00 TC/1/A0
PC01 TC/1/B0
PC25 EIC/EXTINT[2]
PB13 SPI/NPCS[1]
PA23 TWIMS/0/TWD
PA24 TWIMS/0/TWCK
PB00 USART/0/RXD
PB01 USART/0/TXD
PC03 SPI/NPCS[0]
PA22 SPI/MOSI
PA21 SPI/MISO
PC30 SPI/SCK
- -
- -
Shared functionality
Communication line to ID chip on
extension board
GND
LCD connector (EXT5)
LCD connector (EXT5)
LCD connector (EXT5)
LCD connector (EXT5)
LCD connector (EXT5)
EXT4
EXT4
EXT2 and LCD connector (EXT5)
EXT2 and LCD connector (EXT5)
EXT2 and LCD connector (EXT5)
GND
VCC
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