Users Manual

Table Of Contents
R01UH0823EJ0110 Rev.1.10 Page 1212 of 1852
Nov 30, 2020
RX23W Group 36. CAN Module (RSCAN)
36.2.9 Global Configuration Register L (GCFGL)
Modify the GCFGL register only in global reset mode.
TPRI Bit (Transmit Priority Select)
This bit is used to set the transmit priority.
When this bit is set to 0, ID priority is selected and the transmit priority complies with the CAN bus arbitration rule (ISO
11898-1 standard). When this bit is set to 1, transmit buffer number priority is selected and the minimum number of
transmit buffer specified for transmission takes precedence.
DCE Bit (DLC Check Enable)
Setting this bit to 1 makes the DLC check function available. Set the GAFLPHj.GAFLDLC[3:0] bits to 0000b before
setting the DCE bit to 0.
Address(es): RSCAN.GCFGL 000A 8322h
b15b14b13b12b11b10b9b8b7b6b5b4b3b2b1b0
TSSS TSP[3:0] DCS MME DRE DCE TPRI
Value after reset:
0000000000000000
Bit Symbol Bit Name Description R/W
b0 TPRI Transmit Priority Select 0: ID priority
1: Transmit buffer number priority
R/W
b1 DCE DLC Check Enable 0: DLC check is disabled.
1: DLC check is enabled.
R/W
b2 DRE DLC Replacement Enable 0: DLC replacement is disabled.
1: DLC replacement is enabled.
R/W
b3 MME Mirror Function Enable 0: Mirror function is disabled.
1: Mirror function is enabled.
R/W
b4 DCS CAN Clock Source Select 0: PCLK
1: CANMCLK (obtained from the main clock)
R/W
b7 to b5 Reserved These bits are read as 0. The write value should be 0. R/W
b11 to b8 TSP[3:0] Timestamp Clock Source
Division
b11 b8
0 0 0 0: Not divided
0 0 0 1: Divided by 2
0 0 1 0: Divided by 4
0 0 1 1: Divided by 8
0 1 0 0: Divided by 16
0 1 0 1: Divided by 32
0 1 1 0: Divided by 64
0 1 1 1: Divided by 128
1 0 0 0: Divided by 256
1 0 0 1: Divided by 512
1 0 1 0: Divided by 1024
1 0 1 1: Divided by 2048
1 1 0 0: Divided by 4096
1 1 0 1: Divided by 8192
1 1 1 0: Divided by 16384
1 1 1 1: Divided by 32768
R/W
b12 TSSS Timestamp Clock Source Select 0: PCLK
1: CAN bit time clock
R/W
b15 to b13 Reserved These bits are read as 0. The write value should be 0. R/W