Hardware User Guide; Connectors; I/O Extension Headers - Atmel SAM4E Xplained Pro User Manual

4.

Hardware User Guide

4.1

Connectors

This chapter describes the implementation of the relevant connectors and headers on SAM4E Xplained Pro
and their connection to the ATSAM4E16E. The tables of connections in this chapter also describes which
signals are shared between the headers and on-board functionality.
4.1.1

I/O Extension Headers

The SAM4E Xplained Pro headers EXT1, EXT2 and EXT3 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
standard extension header specified in
pitch of 2.54 mm.
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
Table 4-2. Extension Header EXT2
Pin on EXT2
1
2
3
4
5
6
7
8
Xplained Pro Standard Extension Header on page
SAM4E pin Function
- Communication
line to ID chip on
extension board.
- GND
PB2 AFE AD0
PB3 AFE AD1
PA24 GPIO
PA25 GPIO
PA15 TIOA1
PA16 TIOB1
PA11 WKUP7
PD25 GPIO
PA3 TWD0
PA4 TWCK0
PA21 RXD1
PA22 TXD1
PB14 NPCS1
PA13 MOSI
PA12 MISO
PA14 SPCK
- GNC
- VCC
SAM4E pin Function
- Communication
line to ID chip on
extension board.
- GND
- -
- -
PE2 GPIO
PB5 GPIO
PD21 PWMHI1
- -
Shared functionality
EXT2, EXT3, LCD connector and EDBG
EXT2, EXT3, LCD connector and EDBG
EXT2 and EXT3
EXT2 and EXT3
EXT2 and EXT3
Shared functionality
VBUS Sense and EDBG DGI
EDBG TRACESWO
Atmel SAM4E Xplained Pro [USER GUIDE]
7. All headers have a
11
42216A-MCU-01/2014