38.7 Message Filtering

All messages on a CAN network will be received by all nodes. To process only messages of interest, a hardware filtering mechanism is implemented. The CAN Protocol module can be configured to receive only messages of interest. The module contains 12 acceptance filters. Each acceptance filter contains a filter object and a mask object. The user application configures the specific filter to receive a message with a given identifier by setting the filter object and mask object to match the identifier of the message to be received.