USB-MUX-6C6L
– User guide
16/05/2012
00282805-v2
7
Document confidentiel appartenant à Annecy Electronique S.A.S.
Ne peut être diffusé, copié intégralement ou en partie sans autorisation expresse préalable
2.3.
Main characteristics of the CAN connection
Protocol controller: INFINEON MULTICAN
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Standard CAN 2.0B
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Standard identifier 11 bits; extended 29 bits
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Transmission / reception of data up to 8 bytes
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Request for distant transmission (RTR)
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Baud rate up to 1 Mbit/sec
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Spy mode (no acknowledgement or error frame)
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Reading of counters of internal errors
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Detailed information in case of bus error
High speed line interface: NXP TJA 1040
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ISO 11898–24V standard
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Baud rate up to 1 Mbits/sec
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Connection up to 110 stations sur le bus
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Transmission in differential mode
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Short-circuit to ground and battery > 24V
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Termination resistors set up by software
Low speed line interface: NXP TJA1055
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Baud rate up to 125 Kbit/sec
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Connection up to 32 stations on the bus
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Transmission in differential mode
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Possibility to operate on 1 wire
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Detection and treatment of degraded modes
o
Short-circuit to ground
o
Short-circuit to VCC
o
Short-circuit to the battery
o
Short-circuit between CANH and CANL
o
Open circuit
CAN_H
CAN_L
TJA1055
RTH = 550
Ω à 6.8 kΩ
RTL = 550
Ω à 6.8 kΩ
