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14.4.2 CAN Nominal Bit Time
Configuration Register
Note:
The individual bytes in this
multibyte register can be accessed with the following register names:
CxNBTCFGT: Accesses
the top byte NBTCFG[31:24].
CxNBTCFGU: Accesses
the upper byte NBTCFG[23:16].
CxNBTCFG: Accesses
the byte NBTCFG[31:0].
This register can only be
modified in Configuration mode (OPMOD[2:0] = 100).
Name: CxNBTCFG Offset: 0x2604,
0x28F4
Bit 31 30 29 28 27 26 25 24 BRP[7:0] Access R/W R/W R/W R/W R/W R/W R/W R/W Reset 0 0 0 0 0 0 0 0
Bit 23 22 21 20 19 18 17 16 TSEG1[7:0] Access R/W R/W R/W R/W R/W R/W R/W R/W Reset 0 0 1 1 1 1 1 0
Bit 15 14 13 12 11 10 9 8 TSEG2[6:0] Access R/W R/W R/W R/W R/W R/W R/W Reset 0 0 0 1 1 1 1
Bit 7 6 5 4 3 2 1 0 SJW[6:0] Access R/W R/W R/W R/W R/W R/W R/W Reset 0 0 0 1 1 1 1
Bits 31:24 – BRP[7:0] Nominal Baud Rate
Prescaler bits
Value Description
11111111
TQ = 256 x TCY
00000000
TQ = 1 x TCY
Bits 23:16 – TSEG1[7:0] Nominal Time
Segment 1 (Propagation Segment+Phase Segment 1) bits
Value Description
11111111
Length is 256 x
TQ
...
00000000
Length is 1 x TQ
Bits 14:8 – TSEG2[6:0] Nominal Time
Segment 2 (Phase Segment 2) bits
Value Description
1111111
Length is 128 x
TQ
...
0000000
Length is 1 x TQ
Bits 6:0 – SJW[6:0] Nominal
Synchronization Jump Width bits
Value Description
1111111
Length is 128 x
TQ
...
0000000
Length is 1 x TQ
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