Hey all.
My understanding of hardware level details has always been minimal. I was hoping to use Visual6502 to change that. So I started reading the "Visual Circuit Tutorial" on the wiki:
http://wiki.nesdev.com/w/index.php/Visu ... t_tutorial
Coming from zero experience in this field, this tutorial is very confusing because it doesn't explain many fundamental points. I was hoping someone here could clarify for me.
Specifically, the "inverter" example:
http://wiki.nesdev.com/w/images/8/80/Vis_inverter.png
This is very confusing to me because it doesn't explain why any of that happens the way it does. So can someone answer a few questions for me?
1) What determines whether or not the input polysilicon is high?
2) How does the input polysilicon here affect the output polysilicon when they don't touch? I assume the current flows through the other diffusion areas, but how? What determines which diffusion area receives current and when?
Thanks.
My understanding of hardware level details has always been minimal. I was hoping to use Visual6502 to change that. So I started reading the "Visual Circuit Tutorial" on the wiki:
http://wiki.nesdev.com/w/index.php/Visu ... t_tutorial
Coming from zero experience in this field, this tutorial is very confusing because it doesn't explain many fundamental points. I was hoping someone here could clarify for me.
Specifically, the "inverter" example:
http://wiki.nesdev.com/w/images/8/80/Vis_inverter.png
the wiki wrote:
When the input gate is low, current flows into the output wire. When the input gate is high, current flows into ground, driving the output wire low. The output wire is hence the inverse of the input wire.
When one node is the inverse of another, it is said that it inverts into the other node.
When one node is the inverse of another, it is said that it inverts into the other node.
This is very confusing to me because it doesn't explain why any of that happens the way it does. So can someone answer a few questions for me?
1) What determines whether or not the input polysilicon is high?
2) How does the input polysilicon here affect the output polysilicon when they don't touch? I assume the current flows through the other diffusion areas, but how? What determines which diffusion area receives current and when?
Thanks.