Current sinc capability on TWI pins

[DanEsk]

In the datasheet under GPIO electrical specification is stated: I_ol,hdl,twim to be max 50ma. In the footnote it is referred to this as 20ma capability. Could you please clarify whis is correct?

[DanEsk]

[Menon]

Hello,

Sorry for the confusion created here. I need to ask  internally and confirm this.

I will get back to you soon with a proper response.

Kind Regards,

Abhijith

[DanEsk]

Hi,

Just checking to see if there are any updates on this.

/BR

[Menon]

Hello,

Sorry for the time we are taking here. I haven't heard back from the team yet. I have poked them again now, but it's summer vacation here and we are a bit under staffed now. So probably it will take some more time. I will get back to you as soon as I get a response from them.

 

Kind Regards,

Abhijith

[Menon]

Hello,

I heard back from the team today.

The parameter IGPIO,TOTAL is for all pins except the TWI pins on P1.02 and P1.03. Any current on P1.02 and P1.03 is allowed in addition to IGPIO,TOTAL.

Probably drive capability given by the following parameter is what that causes the confusion.

The driver is able to deliver 50 mA in peaks (to quickly discharge the I2C line), but elsewhere it is documented as a 20 mA pin.

Kind Regards,

Abhijith