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TCAN1146-Q1: Multiple CAN ICs are interface with Host wake up.

Manoj Agarwal
Prodigy 250 points
Part Number: TCAN1146-Q1

Hi 

I am using TCAN114X in vehicle netwrking application. I have sevarl CAN IC to one host. How processor will come to know which host is waking up from sleep mode. I want to have signle masker wake up from all CAN ics for host processor to move it to normal mode and also indiviaul interrupt to let Host processor know whihc CAN ic is waking up on pertitculer can Interface.

  • 0
    TI__Guru 53535 points

    Hi Hanoj,

    When the TCAN1146 receives a wake event from the CAN bus, the CANINT interrupt will be set and the RXD pin will be pulled low. In a system with multiple CAN channels and transceivers, the MCU will be able to identify which channel has received a wake event by checking the RXD pin state and the interrupt status on each transceiver. 

    Let me know if you have any more questions. 

    Regards, 
    Eric Schott