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Thread: What is all pin status during standby mode on AURIX™-TC2xx ?

  1. #1
    Advanced Advanced Christine is on a distinguished road
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    What is all pin status during standby mode on AURIX™-TC2xx ?

    Hi all ,

    What is all pin status during standby mode on AURIX™-TC2xx?

    Kind regards
    Christine

    #8042000 12464

  2. #2
    Advanced Advanced Mr.AURIX is on a distinguished road
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    Hi Christine,

    TC29x/TC27x
    GPIOs : PU or Tristate by PMSWCR0.TRISTREQ
    ESR0 : Open drain with weak PU or Tristate by PMSWCR0.ESR0TRIST
    ESR1 : PU
    Pin A/B : PU or Tristate by PMSWCR0.TRISTREQ
    PORST Output : Weak PD

    TC26x
    GPIOs : PU or Tristate by PMSWCR0.TRISTREQ
    ESR0 : Open drain with weak PU or Tristate by PMSWCR0.ESR0TRIST
    ESR1 : PU
    Pin A/B : PU or Tristate by PMSWCR0.TRISTREQ
    PORST Output : Weak PD

    TC23x/22x/21x
    GPIOs : Tristate (except P14.1, P14.3, P14.6 and P21.7 which are with PU)
    ESR0 : Open drain with weak PU or Tristate by PMSWCR0.ESR0TRIST
    ESR1 : PU
    Pin A/B : Tristate
    PORST Output : Weak PD

    I hope that was the answer you were looking for .

    Kind regards
    Mr.AURIX™

  3. #3
    Beginner Beginner baexps_pr1 is on a distinguished road
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    Hello Support,

    Can you please tell me which Pad or Port or BGA Ball you are referring for Pin A/B:?
    My device is TC297 BGA-292 package.
    You can tell me for any package, that is also fine.
    I can map it correspondingly.
    Thank you.
    Regards

  4. #4
    Advanced Advanced UC_wrangler will become famous soon enough
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    PINA is 14.1 (ball A15 on a TC297). It's labeled EVRWUPA in the datasheet, which isn't a very direct link.
    PINB is 15.1 (ball A18 on a TC297). EVRWUPB in the datasheet.

  5. #5
    Beginner Beginner baexps_pr1 is on a distinguished road
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    Hello Support,

    In my hardware design HWCFG[6] is strongly pulled to ground for TC297 device, HWCFG[6]=0.
    So, according to TC29x user manual, the port pins are in Tri-State after Cold Power On Reset, till software changes the default pin behavior during run-time.
    PMSWCR0.TRISTREQ is kept at default value of zero by software.

    During any subsequent run-time Warm Reset/ System Reset / Application Reset of the hardware, will the port pins become Tri-State irrespective of run-time software configuration when PMSWCR0.TRISTREQ=0 is maintained by software?
    Or, I must make PMSWCR0.TRISTREQ=1 to go to Tri-State during Warm Reset/ System Reset/ Application of the hardware?
    Thank you.
    Regards

  6. #6
    Advanced Advanced cwunder is on a distinguished road
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    The value of the PMSWSTAT.TRIST bit determines the behavior of the pads.

    When you have HWCFG[6] = 0 latched on a Cold PORST this places the pads in tristate mode and any subsequent run-time Warm Reset/ System Reset / Application Reset of the hardware will maintain this pad behavior.

    Changing
    PMSWCR0.TRISTREQ bit will update the PMSWSTAT.TRIST bit and respectively the pad behavior.

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