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RM0090: Reference manual - STMicroelectronics

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Controller area network (bxCAN) <strong>RM0090</strong><br />

Figure 236. CAN frames<br />

Inter-Frame Space<br />

Data Frame or<br />

Remote Frame<br />

SOF<br />

Inter-Frame Space<br />

SOF<br />

Inter-Frame Space<br />

SOF<br />

Arbitration Field<br />

44 + 8 * N<br />

Ctrl Field Data Field<br />

8 * N<br />

677/1416 Doc ID 018909 Rev 3<br />

32<br />

6<br />

Data Frame (Standard identifier)<br />

CRC Field<br />

ID DLC CRC<br />

Arbitration Field<br />

Error<br />

Flag<br />

6<br />

32<br />

ID DLC<br />

RTR<br />

IDE<br />

r0<br />

Error Frame<br />

Overload Frame<br />

Overload Overload Overload<br />

Flag Echo Delimiter<br />

6 6 8<br />

16<br />

Remote Frame<br />

44<br />

Ctrl Field CRC Field Ack Field<br />

2<br />

6<br />

16 7<br />

Flag Echo Error Delimiter<br />

Any Frame Inter-Frame Space<br />

Suspend<br />

Intermission<br />

3<br />

Transmission<br />

8<br />

Bus Idle<br />

End Of Frame or<br />

Error Delimiter or<br />

Overload Delimiter<br />

6<br />

RTR<br />

IDE<br />

r0<br />

8<br />

Data Frame (Extended Identifier)<br />

64 + 8 * N<br />

CRC<br />

ACK<br />

Ack Field<br />

2<br />

ACK<br />

Inter-Frame Space<br />

or Overload Frame Notes:<br />

Data Frame or<br />

Remote Frame<br />

Inter-Frame Space<br />

or Error Frame<br />

EOF<br />

0

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