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TI Home » TI E2E Community » Support Forums » Microcontrollers » C2000™ Microcontrollers » C2000 32-bit Microcontrollers Forum » F28M35H52C Pin Mux Discrepency
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  • F28M35H52C Pin Mux Discrepency

    F28M35H52C Pin Mux Discrepency

    This question is answered
    Justin McQuown78781
    Posted by Justin McQuown78781
    on Jul 23 2012 15:55 PM
    Prodigy210 points

    There are differences between the Pin Mux for the concerto F28M35H52C and the datasheet, specifically GPIO Pins 38,46,39,44. Which document should I use as accurate for my design?  

    I'm using the pin mux utility version 100 and I just updated control suite on friday.

    Thanks,

    Justin

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    • Justin McQuown78781
      Posted by Justin McQuown78781
      on Jul 24 2012 09:10 AM
      Prodigy210 points

      Should have been more clear in my initial post.  I'm using the PIN mux utility version in control suite and it is recently updated. There are differences between the datasheet and the pin mux utility specifically on the following pins:

      GPIO38 Pin 69

                    Datasheet options: USB0VBUS

                     pin mux utility options: USB0VBUS, CCP1, MII RXD2 U1RTS

      GPIO46 Pin 70

                    Datasheet options: USB0ID

                     pin mux utility options: USB0ID, MII TXCK, U1RI

      The proposed internal design using the MII functions on these pins as documented in the pin mux utility, will these pins work for this function?

      Also, the issue I had with GPIO39,GPIO44 was internal documentation not datasheet or pin mux utility.

      Thanks,

      Justin

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    • Michael S
      Posted by Michael S
      on Jul 26 2012 13:06 PM
      Genius10050 points

      Hi team,

      Justin called us this afternoon regarding this discrepancy.  I've checked the Pinmux utility that is included in the latest version of ControlSUITE (v1.0.1375.4) alongside the datasheet and can confirm the discrepancies.

      In most cases, the correct documentation is usually the datasheet but with these devices still being TMX, I'm not sure if the mux'ing has been changed and is reflected in the utility and an update to the DS is on it's way or if I should have yielded to Occam's Razor.

      Thank you for any insight you can offer.

      Regards,

      Regards,

      Michael S.

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    • Justin McQuown78781
      Posted by Justin McQuown78781
      on Jul 30 2012 08:48 AM
      Prodigy210 points

      Is there any update on this?

      In addition I have one more issue, Pin 91 in the datasheet of the device lists the pin as 'No Connect' but the control card for the concerto connects the pin to 1.2V and labels it as B_VDD12C.8.  Should this pin be left open?  Is there going to be a hardware change on the device shortly?  Should we avoid using it at this point?  We're not going into production for a little while but we need to get moving on prototypes and testing.

      Thanks,

      Justin

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    • Lori Heustess
      Posted by Lori Heustess
      on Jul 31 2012 16:08 PM
      Guru52245 points

      Justin - I'm investigating this.

      Did a reply answer your question? If yes, please click the "yes" button located at the bottom of that post.
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    • Lori Heustess
      Posted by Lori Heustess
      on Aug 06 2012 08:30 AM
      Verified Answer
      Verified by Justin McQuown78781
      Guru52245 points

      My apologies for the delay on this.

      GPIO38 and GPIO46 – only the USB function is available for these pins on rev 0 devices (GPIO and other functions are not available). This will be fixed in rev A silicon. The Datasheet and Errata (that explain this) will probably be released to external web late next week.

       Pin 91 is a no-connect, but connecting it to 1.2V on the Control Card does no harm.

      Did a reply answer your question? If yes, please click the "yes" button located at the bottom of that post.
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    • Justin McQuown78781
      Posted by Justin McQuown78781
      on Aug 06 2012 08:44 AM
      Prodigy210 points

      Thanks Lois.  Is there a time frame on when the Rev A hardware will be released?

      Justin

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    • Lori Heustess
      Posted by Lori Heustess
      on Aug 06 2012 09:31 AM
      Verified Answer
      Verified by Justin McQuown78781
      Guru52245 points

      The current schedule shows it available in 1Q 2013.

      -Lori

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