That same community happens to be buzzing right now with news that well-known Dreamcast hacker [Ian Micheal] has figured out how to cache data to an SD card via the console’s serial port.
An SD card is just like a small hard drive — it's a device that can store and transport large amounts of data. If you've been using an SD card for a long time, you might need to clear it out.
Subsequently, the SD card controller has to have a small piece of cache memory, and keep a list of operations that are yet to be performed but haven’t been. This is the rationale behind ...
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