RL78/F13, F14 CHAPTER 18 CAN INTERFACE (RS-CAN LITE)
R01UH0368EJ0210 Rev.2.10 1410
Dec 10, 2015
18.11 Reception Procedure
18.11.1 Receive Buffer Reading Procedure
When the processing to store received messages in a receive buffer starts, the RMNSn flag (n = 0 to 15) in the RMND0
register is set to 1 (receive buffer n contains a new message). Messages can be read from the RMIDLn, RMIDHn,
RMTSn, RMPTRn, and RMDF0n to RMDF3n registers. If the next message has been received before the current
message is read from the receive buffer, the message is overwritten. Figure 18-22 shows the receive buffer reading
procedure.
Figure 18-22. Receive Buffer Reading Procedure