11.07.2015 Views

memory products - Al Kossow's Bitsavers

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MK4202(Q)-20TRUTH TABLERS S E WHi - X -Hi - X -Hi - X -Hi X F XG---XMx Hx CGx MODELo X X Force MissHi Lo X Force HitHi Hi Hi Comp DisableHi Hi X StandbyCx DC NOTESLow - 1High - 1Hi-Z - 1Hi-Z Hi-ZHi X T HiHiHi Hi Hi CompareHi-ZDinHi X T HiHiHi Hi Lo CompareHi or LoD inHi Hi T LoXHi Hi Lo HitHighHi-ZHi Hi T XLoHi Hi Lo HitHighHi-ZHi Lo T LoXHi Hi Lo WriteHighD inHi Lo T HiLo Hi X XLo X F XLo X X HiLo X X HiLo Lo T LoLo X T HiLoXXHiLoXHiHi Hi Lo Read- - - Reset- - - Reset- - - Reset- - - Reset- - - Not <strong>Al</strong>lowedHi Hi Lo ResetHighD Out- Hi-Z- Hi-Z- Hi-Z- Lo-Z- Hi-Z 2Lo Din 3Key: X = Don't CareHx = Ho or H,Mx = Mo or M,CGj( = CGo or CG,FT= (False) Eo-E3 pattern DOES NOT match P O -P3 pattern.= (True) Eo-E3 pattern DOES match P O-P3 pattern.= Not related to identified mode of operation.NOTES1. Force hit/miss operations independent of other RAMoperations.2. May disrupt Reset, will not damage device.3. Reset will force Cx low during a valid compare whenCOOO is 0 in = Hi.2118366

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