The XBee/XBee-PRO S2C DigiMesh 2.4 device’s UART performs tasks such as checking timing and parity, which is required for data communications.
Devices that have a UART interface connect directly to the pins of the XBee/XBee-PRO S2C DigiMesh 2.4 as shown in the following figure. The figure shows system data flow in a UART-interfaced environment. Low-asserted signals have a horizontal line over the signal name.