|}
==Multi-protocol UARTs==
{{ImportantMessage|text=From [[AXEL_ULite_and_SBC_Lynx_Embedded_Linux_Kit_(XUELK)|XUELK]] version 1.2.0 UART are automatically initialized at boot time, depending on [[ConfigID (XUELK)|ConfigID]]. For XUELK release 1.1.3 and below, in order to use UART8 as RS232 interface, some GPIOs need to be configured as follows explained {{oldid|6648|into release 1.0.0 of this page}} }}
===Ordering code: XUBxx0xxx0x===
{| class="wikitable"
[1] Supported baud rate range: 9600 Bps - 115200 Bps.
====UART8/RS232 initialization====
In order to use UART8 as RS232 interface, some GPIOs need to be configured as follows:
<pre>
echo 113 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio113/direction
echo 1 > /sys/class/gpio/gpio113/value
echo 136 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio136/direction
echo 1 > /sys/class/gpio/gpio136/value
echo 137 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio137/direction
echo 1 > /sys/class/gpio/gpio137/value
</pre>
====UART3/RS485 initialization====
In order to use UART3 as RS485 interface, some GPIOs need to be configured as follows:
<pre>
echo 114 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio114/direction
echo 1 > /sys/class/gpio/gpio114/value
echo 133 > /sys/class/gpio/export
echo in > /sys/class/gpio/gpio133/direction
echo 134 > /sys/class/gpio/export
echo in > /sys/class/gpio/gpio134/direction
</pre>
====UART3/RS232 initialization [2] ====
In order to use UART3 as RS232 interface, some GPIOs need to be configured as follows:
<pre>
echo 114 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio114/direction
echo 1 > /sys/class/gpio/gpio114/value
echo 133 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio133/direction
echo 1 > /sys/class/gpio/gpio133/value
echo 134 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio134/direction
echo 1 > /sys/class/gpio/gpio134/value
</pre>
[2] RS232 configuration is available on request (different Order Code)
==UART2 on mezzanine connector J53==
