ocr: THE MEMORY MANAGEMENT UNIT (Continued) CR-5D500-5FF00 65432 - - - 0 PCRA=$D501 1/0 Space BE SyPkBR 1/C Spoce PCRB=$0502 ROM LC Space f: Sastor ROM PCRC-$D503 ROM MID PCRD-$D504 ROM HI Spoce Spoce 11 8 = : - RAM CXT! ENT:PPU "AST ARM (LCRF-SFF01) (LCRB-SFF02) A16 IRAM BANK 0-1) (LCRC=5FF031 EXPANSION (LCRD-SFF04) Configuration Register Preconfiguration Register The Configuration Register The Configuration Register, CR, controls the ROM, RAM, and V/O configuration of the C128 system. Iti is located at $D500 in 1/O space and at $FF0O in system space. Some of the bits in this register are at times ...
