Apple IIgs System Timing and the FPI
The Echoes of KFest video podcast presents Daniel Kruszyna’s presentation on the Apple IIGS’s Fast Processor Interface at KansasFest 2011.
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Apple IIgs System Timing and the FPI
The Apple IIgs has a split personality. Most of the machine runs at a ~1MHz clock rate, keeping compatibility with earlier Apple IIs. Some components, however, can be decoupled and run at a faster rate. The FPI, or Fast Processor Interface, is the chip responsible for coordinating the interactions between these personalities. This session by …