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microcontroller – What is the Rout of ATmega64 – Electrical Engineering Stack Exchange
I’m trying to add an external eeprom using i2c interface to a device that uses an Atmega64 controller. That’s fine and dandy.
So then I go to the board and start tracing. I see that those go to a rocker switch with some simple circuitry that I haven’t had a good look at yet, but I assumed it was something i2c compatible. But then what dawned on me was that this device has two such rockers so I expected to trace the other rocker back to the same two pins since i2c is a bus that can have multiple slaves.
Well, now that confused me.
Sadly, I’m not really xatasheet what I’m asking. Can someone shed some light on this? Nevermind, I found the answer. Its BOTH a bus and a simple input In this case, its being used as an input so I can’t also use it as a bus.
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