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TCAN1051G-Q1: WUP funciton

Kai Hsiao
Guru 12675 points
Part Number: TCAN1051G-Q1

HI Sir 

I saw TCAN104x support WUP function 

I have a few question 

1. I think not every CAN BUS solution support WUP function ,may I know WUP function meet which CAN SPEC? Due to I can show our product have WUP function

2. If STB=H (Standby mode) and have Wake up pattern ,The TCAN104x only support RXD and can't support TXD ,is it correct ?

Thanks

  • 0
    TI__Guru 72952 points
    Kai,

    1. Just for clarification, you want to know which part of the CAN specification defines the WUP function? Or which devices support WUP? Any device that can go into Standby and Sleep mode supports WAKEUP pattern on the CAN bus, and a WAKEUP source via a pin logic change, depending on which device it is.

    2. In Standby mode (STB = H), the device is using a low power monitor on the CAN bus for any WAKEUP pattern. If a valid WAKEUP pattern is received, RXD will toggle high then low to signify a valid WAKEUP. TXD is not activated in STANDBY mode.

    Regards,