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Graphics Interchange Format  |  2008-03-11  |  122.4 KB  |  2304x3300
   ocr: THE MEMORY MANAGEMENT UNIT FOLD OUT SCHEMATIC SHEET 2, PAGE 74, FOR EASY REFERENCE. The MMU is designed to allow complex control of the C128 system memory resources. It handles all of the standard C64 modes of operation in a fashion as to be completely compatible with the C64. Additionally, it controls the management of particular C128 modes including the Z-80 mode. Summary of MMU functions: Generation of Translated Address Bus, TAg - TA15- Generation of control signals for different processor modes - C128, C64, Z-80. Generation of CAS select lines for RAM banking. Generation of ROMBANK (MSo, ...