Panasonic MN101L Series User Manual

Panasonic MN101L Series User Manual Manual pdf 69 page image

Chapter 2CPUOverview II - 72.1.7 Address SpaceFigure:2.1.5 shows the address space in CPU.The CPU has 12 KB of RAM area (Max.) and 112 KB of ROM area (Max.).This LSI has 4 KB of RAM and 64 KB of ROM.The instruction access can be used as linear address space except Special function register space. The data accessneeds bank specification in every 64 KB. (The initial value is first 64 KB space (0x00000 to 0x0FFFF)).The data area consists of an area of 256 bytes (beginning at "0x00000") that supports efficient accesses with RAMshort addressing and an special function area of 256 bytes (beginning at "0x03F00") that supports efficientaccesses with I/O short addressing.Figure:2.1.5 Address Space0x040C00x040800x040000x001000x010000x000000x041000x04900128 B64 B64 KBBANK1BANK016 KB48 KB0x100000x1FFFF0x03000256 B256 B 0x03F004 KB0x13FFFInterruptvector tableSubroutinevector tableRAM short addressing areaInternal ROM(64 KB)Internal RAM(4 KB)Special function register areaDataDataInstruction code/Table dataI/O short addressing areaInstruction code