This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TCAN1146-Q1: TCAN1146 configuration problem

Part Number: TCAN1146-Q1

Dear expert

Could you please help on below question?


Question:
Can you provide the TCAN1146 register configuration manual (where the register is configured first, and how to verify it)? Application conditions:
Requirement: The INH switch configuration is low during sleep, and it can be waked up by CAN and rising edge of Wake. After wake up, INH switches and outputs high level.

  • Hi Pei,

    The INH pin functionality you describe is the default behavior for the device. The configuration register for this pin can be found in the DEVICE_CONFIG1 register (h'1A). The WAKE pin is configured to wake on bi-directional transitions by default. This can be changed to only wake on a rising edge by modifying the WAKE_PIN_CONFIG register (h'11 bits 7:6 = 01b). 

    In this configuration, the INH pin will be disabled (high-z) while the device is in Sleep mode. A rising transition on the WAKE pin will cause the device to wake into Standby mode which will enable the INH pin (drive Vsup potential). The INH pin will remain asserted until the device goes back into sleep mode. 

    Let me know if this is sufficient information for your configuration and if you have any more questions. 

    Regards,
    Eric Schott