95CHAPTER 5 CPU ARCHITECTUREFigure 5-5. Memory Map (μPD78055, 78055Y)0000HData memoryspaceGeneral Registers32 × 8 bitsInternal ROM40960 × 8 bits9FFFH1000H0FFFH0800H07FFH0080H007FH0040H003FH0000HCALLF Entry AreaCALLT Table AreaVector Table AreaProgram AreaProgram AreaInternal Buffer RAM32 × 8 bitsExternal Memory23168 × 8 bitsReservedProgrammemoryspaceA000H9FFFHFA80HFA7FHFAC0HFABFHFAE0HFADFHFEE0HFEDFHFF00HFEFFHFFFFHInternal High-speed RAM1024 × 8 bitsSpecial FunctionRegisters (SFRs)256 × 8 bitsReservedFB00HFAFFH