In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Jim Fouch wrote:

I have a project that I will be using 2 - 3 SXs together. My questions is if I us an output from one SX to control the input of another, do I need to pull that pin low or high, or will SXs keep the lines from floating?
 

I know on a switch you never really want a pin floating so you pull it low or high w/ a resister (10K??). But I have never connected two uc together like this.

 

Also, in my design each SX will have it's own 7805. All will have a common ground. Is there any problem with this?

 

Thanks,

 

Jim fouch

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