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SH7052 Datasheet(PDF) 574 Page - Renesas Technology Corp |
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SH7052 Datasheet(HTML) 574 Page - Renesas Technology Corp |
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574 / 919 page  548 Initialization • IRR0 clearing • HCAN port setting • BCR setting • MBCR setting • Mailbox (RAM) initialization Interrupt settings Receive data setting • Arbitration field setting • Local acceptance filter settings Message reception (Match of identifier in mailbox?) No Same RXPR = 1? Yes Data frame? No RXPR IRR1 = 1 Yes IMR1 = 1? Interrupt to CPU Message control read Message data read Clear PXPR Yes No Yes No No RXPR = 1? Yes Yes No RXPR = 1? Yes RXPR, RFPR = 1 IRR2 = 1, IRR1 = 1 IMR2 = 1? Interrupt to CPU Message control read Message data read Clear RXPR, RFPR Transmission of data frame corresponding to remote frame No : Settings by user : Processing by hardware End of reception Unread message Figure 15.9 Reception Flowchart |
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