Hi,
I'm in the process (slowly) of developing an Arduino-based mod-chip for the SNES. @lidnariq has already given me lots of useful help with understanding calls to the region bit in the PPU here viewtopic.php?t=24213.
I'm nearly done with the basic 60Hz/CIC mod but have realised I don't think I understand the CIC as well as I had thought. Various switched-mod guides refer to adding a switch to connect pin 4 to +5V/GND but they don't specify what it's default state is. It looks from this page - https://wiki.superfamicom.org/cic that pin 4 is usually attached to GND but I can't find an actual pinout for the CIC.
Am I right in thinking that with pin 4 attached to GND it operates as normal and attached to +5V it's disabled?
Thanks.
Help with understanding SNES lockout chip
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Re: Help with understanding SNES lockout chip
The schematic shows that pin 4 of the F411 CIC goes to VCC, afaik.
My current setup:
Super Famicom ("2/1/3" SNS-CPU-GPM-02) → SCART → OSSC → StarTech USB3HDCAP → AmaRecTV 3.10
Super Famicom ("2/1/3" SNS-CPU-GPM-02) → SCART → OSSC → StarTech USB3HDCAP → AmaRecTV 3.10
Re: Help with understanding SNES lockout chip
Thank you.
Oddly, the opposite of the page here: https://wiki.superfamicom.org/schematic ... y-chip-352.
I'll just have to try it out and see what happens.
Oddly, the opposite of the page here: https://wiki.superfamicom.org/schematic ... y-chip-352.
I'll just have to try it out and see what happens.