• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Subscribers 98 subscribers
  • Views 510 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

TCI6630K2L / 66aK2L06 D/S issues.

PhilM5
Intellectual 1680 points
Other Parts Discussed in Thread: TCI6630K2L

Hi All,

Could you please help in clarifying  TCI6630K2L rev.E D/S :

  1. SPI2DIN/SPI2DOUT pin-out

    page 39 :

    SPI2DIN     J4

    SPI2DOUT   K4

    But on page 48, both are inverted :

    SPI2DIN     K4

    SPI2DOUT   J4



  2. connectivity for signal AF8, given that D/S says 'NC' while EVM design shows connectivity to VPP1V8 and capacitor towards GND.

Thanks & Regards

PM

  • 0
    TI__Mastermind 42545 points

    Hi PM,

    I've confirmed that SPI2DIN should be on pin K4 and SPI2DOUT should be on pin J4 as shouwn on page 48. I will file a bug against the data manual to get it corrected. For customer designs, AF8 should be left unconnected. The connection to 1.8V on the EVM was included for internal testing purposes. 

    Regards, 

    Bill

  • 0 in reply to Bill Taboada
    TI__Intellectual 1680 points

    Hi Bill,

    Sorry, but I'm still not clear with this since D/S says that SPI2DOUT is muxed with UART1CTS while SPI2DIN is muxed with UART1RTS and EVM Schematics shows that UART1CTS(SPI2DOUT) is on K4 and that UART1RTS(SPI2DIN) is on J4.

    Where's the error then ?

     

    Thanks & Regards

    PM

  • 0 in reply to PhilM5
    TI__Mastermind 42545 points
    Hi PM,
    In the data manual table 6-2 and 6-5 are incorrect while table 6-4 is correct. UART1CTS, which is an input to the device, is shared with SPI2DIN on pin K4. UART1RTS, which is an output from the device, is shared with SPI2DOUT on pin J4. The EVM schematic includes an older naming convention but is correct. You can see that pin K4 is labeled UART1CTS_SPI2SOMI where SOMI stands for 'slave out, master in'. This was changed to DIN since the K2L doesn't support SPI in slave mode. The EVM schematic does have the signal direction indicators for the module ports reversed. The direction indicates that CTS is an output and RTS is an input but CTS is always an input and RTS is always an output for RS-232.
    Regards,
    Bill