38.13.3 CxDBTCFG

CAN Data Bit Time Configuration Register
Note:
  1. The individual bytes in this multibyte register can be accessed with the following register names:
    • CxDBTCFGT: Accesses the top byte DBTCFG[31:24]
    • CxDBTCFGU: Accesses the upper byte DBTCFG[23:16]
    • CxDBTCFGH: Accesses the high byte DBTCFG[15:8]
    • CxDBTCFGL: Accesses the low byte DBTCFG[7:0]
  2. This register can only be modified in Configuration mode (OPMOD[2:0] = 100).
Name: CxDBTCFG
Address: 0x0108

Bit 3130292827262524 
 BRP[7:0] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 
Bit 2322212019181716 
    TSEG1[4:0] 
Access R/WR/WR/WR/WR/W 
Reset 01110 
Bit 15141312111098 
     TSEG2[3:0] 
Access R/WR/WR/WR/W 
Reset 0011 
Bit 76543210 
     SJW[3:0] 
Access R/WR/WR/WR/W 
Reset 0011 

Bits 31:24 – BRP[7:0] Data Baud Rate Prescaler

ValueDescription
11111111 TQ=TCY/256
00000000 TQ=TCY/1

Bits 20:16 – TSEG1[4:0] Data Time Segment 1 (Propagation Segment+Phase Segment 1)

Bits 11:8 – TSEG2[3:0] Data Time Segment 2 (Phase Segment 2)

Bits 3:0 – SJW[3:0] Data Synchronization Jump Width

The individual bytes in this multibyte register can be accessed with the following register names: CxDBTCFGT: Accesses the top byte DBTCFG[31:24] CxDBTCFGU: Accesses the upper byte DBTCFG[23:16] CxDBTCFGH: Accesses the high byte DBTCFG[15:8] CxDBTCFGL: Accesses the low byte DBTCFG[7:0] This register can only be modified in Configuration mode (OPMOD[2:0] = 100).