User manual

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