CP3BT23_14 Datasheet, PDF (128/324 Pages) Texas Instruments – CP3BT23 Reprogrammable Connectivity Processor with Bluetooth and Dual CAN Interfaces

CP3BT23
SNOSCX3A – JULY 2013 – REVISED JANUARY 2014
Remote Frame
Figure 18-5 shows the structure of a standard remote frame.
Figure 18-6 shows the structure of an extended remote frame.
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Figure 18-5. Standard Remote Frame
EXTENDED REMOTE FRAME (number of bits = 64)
Arbitration Field
11
18
Control Field
4
16
CRC Field
15
CRC
END OF
FRAME
d
rr
r dd
r rrrrrrrr
IDENTIFIER
28 ... 18
Note:
d = dominant
r = recessive
IDENTIFIER
17 ... 0
DATA
LENGTH CODE
Figure 18-6. Extended Remote Frame
DS023
A remote frame is comprised of the following fields, which is the same as a data frame (see
Section 18.2.2) except for the data field, which is not present.
• Start of Frame (SOF)
• Arbitration Field + Extended Arbitration
• Control Field
• Cyclic Redundancy Check Field (CRC)
• Acknowledgment field (ACK)
• End of Frame (EOF)
Note that the DLC must have the same value as the corresponding data frame to prevent contention on
the bus. The RTR bit is “recessive”.
128 CAN Module
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