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GDeXi's avatar
GDeXi
Icon for Occasional Contributor rankOccasional Contributor
6 years ago
Solved

S10 Device Pin status

MSEL1 and MSEL2 are both external 4.7K resistor pull-downs, but measured as 1.8, look at s10 pcg doc, there is an internal 25K pull-up, according to my understanding should be between 1.8 and ...
  • YuanLi_S_Intel's avatar
    YuanLi_S_Intel
    6 years ago

    Hi Guo DeXin,

    Perhaps you will need to check your board signal integrity. In S10, pin connection guidelines, it is recommended to route in a way that no aggresor on this. More over, it is a reference resistor pin, is a input pin instead.

    Thank You.

YuanLi_S_Intel's avatar
YuanLi_S_Intel
Icon for Regular Contributor rankRegular Contributor
6 years ago

Hi DeXin,

Apologize i dont really understand the question. Are you saying that the output voltage observed with external 2.8K pull down, the voltage is 500mV and this is abnormal?

Thank You

User1574410249703619's avatar
User1574410249703619
Icon for New Contributor rankNew Contributor
6 years ago

Yes,The pin IO_AUX_RREF and RREF_SDM , the voltage is 500mV and this is abnormal?