Idle mode

When not receiving or transmitting data, the device is in Idle mode. During Idle mode, the device listens for valid data on both the RF and serial ports.

The device shifts into the other modes of operation under the following conditions:

• Transmit mode (serial data in the serial receive buffer is ready to be packetized).
• Receive mode (valid RF data received through the antenna).
• Command mode (Command mode sequence issued, not available with Smart Energy software or when using the SPI port).