A technical deep dive into Super Nintendo cartridge hardware: CIC, SRAM, and enhancement processors
By
offbyone42
If you only eat one bagel today, this is the bagel.
Summary
The article explores the internal hardware architecture of Super Nintendo game cartridges, detailing how they contained more than just ROM chips. It covers the CIC copy protection mechanism (where two chips in the console and cartridge communicate in lockstep), SRAM for save data, and enhancement processors that expanded the console's capabilities. The piece provides a technical deep-dive into the physical PCB components found inside SNES cartridges.
Key quotes
· 3 pulledOne of the remarkable characteristics of the Super Nintendo was the ability for game cartridges (cart) to pack more than instructions and assets into ROM chips.
If we open and look at the PCBs, we can find inside things like the CIC copy protection chip, SRAM, and even 'enhancement processors'.
The copy-protection mechanism of the SNES is something I already dig into in my 10NES article. It works by having two chips talking in lockstep.
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