4.
Hardware User Guide
4.1.
Connectors
This chapter describes the implementation of the relevant connectors and headers on SAM4L8 Xplained
Pro and their connection to the ATSAM4LC8CA. 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 SAM4L8 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 standard Xplained Pro extension header specification. All headers have a pitch of
2.54mm.
Table 4-1. Extension Header EXT1
Pin on EXT1
SAM4L8 pin
Function
Shared functionality
1
-
-
Communication line to ID chip on
extension board
2
-
-
GND
3
PA04
ADCIFE/AD[0]
4
PA05
ADCIFE/AD[1]
5
PB12
GPIO
LCD connector (EXT5)
6
PC02
GPIO
7
PC00
TC/1/A0
8
PC01
TC/1/B0
9
PC25
EIC/EXTINT[2]
LCD connector (EXT5)
10
PB13
SPI/NPCS[1]
LCD connector (EXT5)
11
PA23
TWIMS/0/TWD
LCD connector (EXT5)
12
PA24
TWIMS/0/TWCK
LCD connector (EXT5)
13
PB00
USART/0/RXD
EXT4
14
PB01
USART/0/TXD
EXT4
15
PC03
SPI/NPCS[0]
16
PA22
SPI/MOSI
EXT2 and LCD connector (EXT5)
17
PA21
SPI/MISO
EXT2 and LCD connector (EXT5)
18
PC30
SPI/SCK
EXT2 and LCD connector (EXT5)
19
-
-
GND
20
-
-
VCC
Atmel SAM4L8 Xplained Pro [USER GUIDE]
Atmel-42103B-SAM4L8-Xplained-Pro_User Guide-04/2016
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