102CHAPTER 5 CPU ARCHITECTUREFigure 5-6. Data Memory Addressing (μPD78P058F, 78P058FY)Note When internal PROM size is 60 Kbytes, the area F000H to F3FFH cannot be used. F000H to F3FFHcan be used as external memory by setting the internal PROM size to less than 56 Kbytes by thememory size switching register (IMS).0000HGeneral Registers32 × 8 bitsInternal PROM61440 × 8 bitsInternal Buffer RAM32 × 8 bitsReservedF000HEFFFHF800HF7FFHFAC0HFABFHFAE0HFADFHFEE0HFEDFHFF00HFEFFHFFFFHInternal High-speed RAM1024 × 8 bitsReservedFB00HFAFFHF400HF3FFHFF20HFF1FHFE20HFE1FHSpecial FunctionRegisters (SFRs)256 × 8 bitsInternal Expansion RAM1024 × 8 bitsSFR AddressingRegister Addressing Short DirectAddressingDirect AddressingRegister IndirectAddressingBased AddressingBased IndexedAddressingReservedNote
