Can Usart mode be used with the I2C mode in the 16F PICs?

[Ogive]

Hi

I am interested in using two buses in my design: one I2C and the other Usart. I know that the SPI can't be used in parallel with the I2C- Its obvious as it uses the same pins... but what about Usart? The pics in question are the 16f876a.

Thanks in advance.

 

[blueroomelectronics]

yes

 

[Ogive]

Re: Can Usart mode be used with the I2C mode in the 16F PICs

Thanks

 

[teteamigo]

Re: Can Usart mode be used with the I2C mode in the 16F PICs

You can share the two pins between two protocols (I2C,SPI). You should use a kind of
Analog Multiplex (take care, I2C Receiver sends Acknowledge in DATA line).
**broken link removed**

Analog Multiplex by principle is bidirectional (Switchs).

Not Tri-state.

Like Pass-Gates (PMOS&NMOS in parallel)