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Reset Traces

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schematic of the various reset traces

The SNES has a few traces used in system resetting:

/RESOUT0 allows S-PPU2 to reset S-PPU1. It is produced by pin 33 of PPU2 and goes into pin 98 (/RESET) of PPU1. It is not connected to anything else.

/RESOUT1 is produced by pin 28 of S-PPU2 and passes through R74 before combining with the voltage supervisor reset output. Then, /RESOUT1 goes into these pins, all of which are labled /RESET:

The trace (not pin) labeled /RESET on the jwdonal schematic is produced by pin 10 (P10) of the CIC and is what actually resets PPU2 (going into pin 34).

See Also