系统的设计考虑实现游戏控制器

Whendevelopingasystemthatwillultimatelyutilizea

ROM-basedmicrocontroller(MCU),itisstilltypicalto

makeuseofanEPROM-basedMCUduringthefinal

stagesofthedesign.Initialdevelopmentmayalso

includetheuseofsometypeofemulatorsystem,but

prototypeunitsnormallymakeuseofawindowed

EPROMorOTPEPROMMCU,andthedesignisopti-mized/validatedbasedupontheperformanceofthe

EPROM-baseddevicewithout,inmanycases,taking

intoconsiderationpotentialdifferencesintheperfor-manceoftheROM-baseddevicethatwillultimatelybe

used.

AN721SystemDesignConsiderationsforImplementingaROMMicrocontrollerneedingtoconvertanexistingEPROM-baseddesignAuthor:RickStonekingtoROM,shouldthoroughlyreviewthisapplicationnoteMicrochipTechnology,Inc.todetermineifthepotentialforproblemsexist.Thisdocumentisnotintendedtobeanallencompassinglistofallpossibleissues,itissimplyareferenceresourceINTRODUCTION