Users Manual

Table Of Contents
R01UH0823EJ0110 Rev.1.10 Page 1225 of 1852
Nov 30, 2020
RX23W Group 36. CAN Module (RSCAN)
36.2.24 Receive Buffer Number Configuration Register (RMNB)
Modify the RMNB register only in global reset mode.
NRXMB[4:0] Bits (Receive Buffer Number Configuration)
These bits are used to set the total number of receive buffers of the CAN module. The maximum value is 16.
Setting these bits to all 0s makes receive buffers unavailable.
36.2.25 Receive Buffer Receive Complete Flag Register (RMND0)
Write 0 to the RMND0 register in global operating mode or global test mode.
RMNS[15:0] Flags (Receive Buffer Receive Complete Flag n)
Each of the RMNS[15:0] flags becomes 1 when the processing for storing a message in the corresponding receive buffer
starts.
To set these flags to 0, write 0 to the corresponding flag by the program. In this case, write this register in 16-bit unit to
ensure that only the specified bit is set to 0 and the other bits are set to 1. These bits cannot be set to 0 while a message is
being stored. It takes time of 10 clock cycles of PCLK for storing a message.
These flags become 0 in global reset mode.
Address(es): RSCAN.RMNB 000A 8332h
b15b14b13b12b11b10b9b8b7b6b5b4b3b2b1b0
——————————— NRXMB[4:0]
Value after reset:
0000000000000000
Bit Symbol Bit Name Description R/W
b4 to b0 NRXMB[4:0] Receive Buffer Number
Configuration
Set the number of receive buffers.
Set a value of 0 to 16.
R/W
b15 to b5 Reserved These bits are read as 0. The write value should be 0. R/W
Address(es): RSCAN.RMND0 000A 8334h
b15b14b13b12b11b10b9b8b7b6b5b4b3b2b1b0
RMNS[15:0]
Value after reset:
0000000000000000
Bit Symbol Bit Name Description R/W
b15 to b0 RMNS[15:0] Receive Buffer Receive
Complete Flag n
0: Receive buffer n contains no new message (n = 0 to 15).
1: Receive buffer n contains a new message.
R/W