FS6510 Level Triggering at low level

[N123]

Hi,

Is it possible configure a low-level trigger on IO of FS6510 SBC for waking up?

We want to use level triggering but below a voltage.

For example, whenever IO5 receives a level lower than 5V, then it should wake up the system. (We don’t want to depend on edge triggering as we are unsure on rate of falling).

In case there is some documentation stating all register definitions, please share.

[N123]

Hi,

Thank you. Could you please share edge triggered data similar way? Like voltage levels and rate of rise and fall (as in 2nd screenshot)? 

[TomasVaverka · Accepted solution]

Hi Neetigya,

I do not have such data. I can only add an info about the deglitch time:

Meaning, if IO voltage < 2.1V and the duration is > 70us, then the device will wake up. 

Best regards,

Tomas

[N123]

Hi, Thank you very much.

We were asking regarding this time constraint only.

[TomasVaverka]

Hi Neetigya,

Yes, it is possible to achieve that by setting WU_IO5_1:0 bits to 0b10:

Valid high/low voltage: IO5 pin Voltage>2.6V = High, Voltage<2.1V = Low:

Best regards,

Tomas