© 2014 Digi International Inc. 72
XBee/XBee-PRO
®
DigiMesh 2.4 User Manual
delivered to the destination, the transmit status frame will indicate the cause of failure. The
received data frame (0x90 or 0x91) is set by the AP command.
Remote AT Commands
The following image shows the API frame exchanges that take place at the UART when sending
a remote AT command. A remote command response frame is not sent out the UART if the
remote device does not receive the remote command.
Supporting the XBee API
Applications that support the API should make provisions to deal with new API frames that may
be introduced in future releases. For example, a section of code on a host microprocessor that
handles received serial API frames (sent out the module's DOUT pin) might look like this:
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