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TIR1000: Can TIR1000 directly connect to MCU like msp430? any reference circuit and sample code ?

Yue TANG
Expert 8485 points
Part Number: TIR1000

Hi,

My customer need a IrDA to Uart function.  looks like TIR1000 is suitable and without the SW need.  Here, want to know Can TIR1000 directly connect to MCU like msp430? any reference circuit and sample code?

  • 0
    TI__Guru 62910 points
    Hi Yue,

    Yes, the TIR1000 can connect to the to the MSP430's UART as long as you can also generate the 16x clock signal that is required for the IrDA encoding/decoding. This higher-frequency clock signal needs to be provided to TIR1000 along with the TXD/RXD lines and should be synchronous to them (i.e., derived from a common reference).

    Regards,
    Max
  • 0 in reply to Max Robertson
    TI__Expert 8485 points
    Max,
    Thanks for the reply. Is there a sample code or ref design for this? BTW, can I use a external 1.843M OSC? do I need to encode and decode the UART data at MCU side?if need,how to do it?
  • 0 in reply to Yue TANG
    TI__Guru 62910 points
    Hi Yue,

    I'm unfortunately not aware of any sample code or oscillator restrictions, but since all of the encoding/decoding is performed within TIR1000 there isn't a need to implement this in the MCU. The TIR1000 was designed to connect with a standard UART interface (without IrDA encoding), the only special consideration is the generation of the 16x clock signal (which may be difficult depending on the MCU chosen, the frequency of operation, and the desired baud rate).

    Max