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M37515M4-A04HP Datasheet(PDF) 5 Page - Mitsubishi Electric Semiconductor |
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M37515M4-A04HP Datasheet(HTML) 5 Page - Mitsubishi Electric Semiconductor |
5 / 54 page 5 M37515M4-XXXHP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER MITSUBISHI MICROCOMPUTERS MEMORY Special Function Register (SFR) Area The Special Function Register area in the zero page contains con- trol registers such as I/O ports and timers. RAM RAM is used for data storage and for stack area of subroutine calls and interrupts. ROM The first 128 bytes and the last 2 bytes of ROM are reserved for device testing and the rest is user area for storing programs. Interrupt Vector Area The interrupt vector area contains reset and interrupt vectors. Zero Page Access to this area with only 2 bytes is possible in the zero page addressing mode. Special Page Access to this area with only 2 bytes is possible in the special page addressing mode. Fig. 4 Memory map diagram 010016 000016 004016 FF0016 FFDC16 FFFE16 FFFF16 023F16 C00016 C08016 RAM 512 bytes ROM 16 Kbytes 044016 SFR area Not used Interrupt vector area Reserved ROM area (128 bytes) Zero page Special page Reserved ROM area Reserved area |
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