SH7052 Datasheet, PDF (572/919 Pages) Renesas Technology Corp – SuperHTM RISC engine

15.3.4 Receive Mode
Message reception is performed using mailboxes 0 and 1 to 15. The reception procedure is
described below, and a reception flowchart is shown in figure 15.9.
1. Initialization (after hardware reset only)
a. Clearing of IRR0 bit in interrupt register (IRR)
b. HCAN pin port settings
c. Bit rate settings
d. Mailbox transmit/receive settings
e. Mailbox initialization
2. Interrupt and receive message settings
a. Interrupt setting
b. Arbitration field setting
c. Local acceptance filter mask (LAFM) settings
3. Message reception and interrupts
a. Message reception CRC check
b. Data frame reception
c. Remote frame reception
d. Unread message reception
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