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TCAN1145-Q1: how to config TCAN1145 to only wakeup TCAN1145 by WAKE pin

Ted Xu
Expert 4600 points
Part Number: TCAN1145-Q1
Other Parts Discussed in Thread: TCAN1576-Q1

Tool/software:

Hi BU team 

Customer wants that TCAN1145-Q1 only is waked-up via the local WAKE pin (pin9) and don't response any of other wakeup events.

 Does TCAN1145 support it ? If yes, would you share how to config TCAN1145-Q1 via SPI interface?

Thanks 

  • 0
    TI__Guru 74262 points

    Ted,

    No, the TCAN1145-Q1 does not support this directly because there is no way to disable the CAN bus WUP detection. The transceiver can be configured for selective wake and wake-up frame that will never be sent, effectively leaving the transceiver in sleep mode unless a SPI command is sent to transition the device out of sleep mode.

    The SIC version of TCAN1145-Q1, the TCAN1576-Q1 and TCAN1579-Q1 will have the feature to disable wake from the CAN bus.

    Regards,

    Eric Hackett