Acceptance Filters; Figure 385. Dual-Can Block Diagram - ST STM32F446 Series Reference Manual

Advanced arm-based 32-bit mcus

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Controller area network (bxCAN)

Acceptance filters

The bxCAN provides up to 28 scalable/configurable identifier filter banks in dual CAN

configuration, for selecting the incoming messages, that the software needs and discarding

Receive FIFO

Two receive FIFOs are used by hardware to store the incoming messages. Three complete

messages can be stored in each FIFO. The FIFOs are managed completely by hardware.

RM0390 Rev 4

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