Such a diagram is pretty common fare for a manufacturer's datasheet or hardware manual. Do you have one? Can you find one? Do you need me to hold your hand and give you a link?Hello.
I have a 8051 Uc and I can configure the Digital I/O pins to be one of the several options below:
1. Input with an internal pull-up.
2. Input with an internal pull-down.
4. 1L output.
5. 0L output.
How does a diagram of such pin looks like?