![]() The CAN messages are read from the receive FIFO with status and time stamp of the time of reception. In addition, specific message filtering can be carried out for each CAN controller. ![]() The receive FIFO of a message channel supports the access methods "event-controlled" and "polling" where a FIFO fill level mark can be defined to trigger an event. If message channels are created cooperatively for a certain CAN controller, the data of that CAN controller is distributed equally to the various message channels. Message channels can be created exclusively or cooperatively. A message channel consists of one transmit and one receive FIFO. Communication with the CAN interface card occurs via message channels.
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