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TCAN1144-Q1: TCAN1144-Q1

Kavana Hanumantharaya
Prodigy 70 points
Part Number: TCAN1144-Q1
Other Parts Discussed in Thread: TCAN1146-Q1, TCAN1145-Q1,

Hello team,

I got to know TCAN1144-Q1, TCAN1145-Q1, TCAN1146-Q1 are the CAN Transceivers used for Partial Networking with SPI interface. Could you please tell is there any CAN transceiver with other interfaces. I searched for such transceiver I didn't get any, so it would be very helpful.

Thank you,

Kavana H

  • 0
    TI__Mastermind 48195 points

    Hi Kavana,

    I'm sorry, I don't quite understand your question. What do you mean by "CAN transceiver with other interfaces"? 

    Do you mean a different interface like RS-485 or LIN that support a partial networking feature? If so, I'm not aware of any such devices. Partial networking is a feature defined by the CAN standard itself and it not used in other interfaces to my knowledge. 

    If you're asking if we have other CAN transceivers that support partial networking, such devices are currently in our pipeline. Do you have a specific use case in mind for such a CAN transceiver with partial networking support?

    Regards,
    Eric Schott

  • 0 in reply to Eric Schott1
    Prodigy 70 points

    Hello,

    My question was TCAN1144-Q1, TCAN1145-Q1, TCAN1146-Q1 transceivers have SPI interface (as marked in the screenshot) for transceiver configuration and mode control. Is there any transceiver with i2C or UART or other interfaces? If there is such transceiver it would be helpful.

    Thank you,

  • 0 in reply to Kavana Hanumantharaya
    TI__Mastermind 48195 points

    Hi Kavana,

    Unfortunately, I am not aware of any I2C or UART transceivers in our portfolio that use SPI for configuration or mode control. 

    What application would such a device be used for? Would this be for channel expansion of new I2C or UART ports? Or is there a specific function you're looking for to include in the device such as a watchdog or partial networking-like function?

    Regards,
    Eric Schott

  • 0 in reply to Eric Schott1
    Prodigy 70 points

    Hi,

    I don't need I2C or UART transceivers that use SPI.

    I want CAN transceiver with partial networking that uses i2C or UART interfaces instead of SPI as it is used in TCAN1144-Q1, TCAN1145-Q1, TCAN1146-Q1 transceivers.

    In our application we need partial networking function through i2C or UART interfaces and not through SPI because micro controller's SPI ports are fully used and there is no more SPI available. Hence i need CAN transceiver with other interfaces.

  • 0 in reply to Kavana Hanumantharaya
    TI__Mastermind 48195 points

    Hi Kavana,

    Sorry for the misunderstanding. This makes sense to me now. 

    We currently don't have any CAN transceivers that use I2C or UART for mode control or configuration. All CAN transceivers that support partial networking are only configured through SPI. 

    SPI is a multi-drop interface that allows the SCLK, MISO, and MOSI lines to be shared across SPI peripherals. Each peripheral will only need a unique chip select (CS) signal. Is the bandwidth on the existing SPI ports entirely taken up? If so, consider that the configuration of TCAN1146 will only need to take place once after initial power up, and the mode control will take very little bandwidth. Or are there other SPI peripherals on the interface that would prevent parallel connections with TCAN1146?

    Regards,
    Eric Schott

  • +1 in reply to Eric Schott1
    Prodigy 70 points

    This answers my question. Thank you so much for the information that you have provided.

    And sorry for framing question wrongly.