3-wire bus ?

Hi All,

Is there a standard called "3-wire bus" ?

Is it a UART protocal ?

Could you please adivce?

Thank you very much!

BR
/Boki.

 

Here's a two wire bus...
<http://www.trolleybus.net/fullsize/jane/152.jpg>

 

Some SPI devices use the term. To distinguish from 'two wire' (I2C), and
'one wire' connections (like the Dallas parts).

Best Wishes

 

Ah, but the 600VDC supply makes it a bit dodgy for Boki who can't even manage Google.

 

Hi,

Thanks, I think that should be SPI.

Finally, it is a little trouble, I have to code the clock for 3-wire
bus, right?

I will choose I2C now..

BR
/Boki.