Rainbow-electronics CAN интерфейс Manual do Utilizador descarregar pdf (Página 14)

BOSCH

ROBERT BOSCH GmbH, Postfach 50, D-7000 Stuttgart 1

Sep. 1991

Part A - page 12

Coding of the number of data bytes by the DATA LENGTH CODE

abbreviations: d ’dominant’

r ’recessive’

DATA FRAME: admissible numbers of data bytes: {0,1,....,7,8}.

Other values may not be used.

r1 r0 DLC3 DLC2 DLC1 DLC0

CRC

Field

Arbitration

Field

Data

Field

CONTROL FIELD

Data Length Codereserved

bits

DLC3 DLC2 DLC1 DLC0

Number of Data

Bytes

Data Length Code

Data Frame

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 71 72

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