API mode overview

By default, the XTC RF Module acts as a serial line replacement (Transparent operation), it queues all UART data that it receive through the DI pin for RF transmission. When the device receives an RF packet, it sends the data out the DO pin with no additional information.

The following behaviors are inherent to Transparent operation:

• If device parameter registers are to be set or queried, a special operation is required for transitioning the device into Command Mode; refer to Enter Command mode.
• In point-to-multipoint systems, the host application must send XTend vBa if the receiving device(s) need to distinguish between data coming from different remotes.

API operating mode is an alternative to transparent mode. API mode is a frame-based protocol that allows you to direct data on a packet basis. It can be particularly useful in large networks where you need to control the destination of individual data packets or when you need to know which node a data packet was sent from. The device communicates UART data in packets, also known as API frames. This mode allows for structured communications with serial devices. It is helpful in managing larger networks and is more appropriate for performing tasks such as collecting data from multiple locations or controlling multiple devices remotely.