The Extended Operating Mode is a hardware MAC accelerator and extends the basic radio transceiver functionality provided by the Basic Operating Mode. It handles time critical MAC tasks, defined in the IEEE 802.15.4 standard, by hardware, such as automatic acknowledgement, automatic CSMA-CA and frame retransmission.
- TX_ARET
- A frame transmission in TX_ARET mode is a combined transaction of executing the CSMA-CA algorithm, (re-)transmitting a frame and receiving and processing the associated ACK frame if necessary.
- RX_AACK
- A frame reception in RX_AACK mode is a combination of receiving a frame, matching it against the address filter, checking the FCS and transmitting the ACK frame if necessary.
The transaction flow diagrams for both modes are given in section 7.2.3 (RX_AACK_ON Receive with Automatic ACK) and section 7.2.4 (TX_ARET_ON Transmit with Automatic Retry and CSMA-CA Retry) of the AT86RF231 datasheet.
This section describes how the TX_ARET and RX_AACK modes are configured and how they operate during transmission and reception. Moreover, the configuration of typical (network) devices is shown.
Use Cases:
Generated on Mon Jan 12 18:32:18 2009 for SWPM AT86RF231 by
1.5.2