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OLIMEX© 2014
6.3 UEXT module
A13-OLinuXino has an UEXT connector and can connect with Olimex's UEXT modules.
For more information on UEXT please visit:
https://www.olimex.com/Products/Modules/UEXT/resources/UEXT.pdf
UEXT connector
Pin #
Signal Name
1
3.3V
2
GND
3
UART1_TX
4
UART1_RX
5
TWI2_SCK
6
TWI2_SDA
7
SPI2_MISO
8
SPI2_MOSI
9
SPI2_CLK
10
SPI2_CS0
The UEXT pinout is also printed at the bottom of the board under the connector.
Notice that UART1 data lines are multiplexed with the UART pins in the UEXT connector.
Processor Pin #
-
-
152
151
161
160
117
116
115
114
Page 24 of 37
A13-OLinuXino user's manual
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