Completed netting of all pins attached to IC's U1 - U10. Questionable assignments on a few pins though, would like review some more.
Nintendo's custom 48-pin expansion header has been replaced with a 50 pin ribbon cable connector.
The CIC chip is present but not wired to the CPU's reset line. Currently the CIC host reset line is wired to expansion pin 49.
The following pins are not connected to anything:
U3: 6,7,10,12
U10: 5
P2: 46,50
Now on to the circuits with passive components......
TO DO:
Circuits:
Reset Switch
Power switch
System Clock
CIC Clock
CPU Analog Audio IN/OUT
PPU Analog Video OUT
Joypad pullup resistor banks
Joypad diode banks
Joypad connectors
misc pull resistors,caps
AV line level output circuits
usb power in
Other:
famicom io ports
fork schematic,replace ram with sourceable chips, update pinout
look for cheaper/smaller/modern components
....this could take awhile
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