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M37210M4-807SP Datasheet(PDF) 7 Page - Mitsubishi Electric Semiconductor |
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M37210M4-807SP Datasheet(HTML) 7 Page - Mitsubishi Electric Semiconductor |
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7 / 59 page  MITSUBISHI MICROCOMPUTERS M37210M3-XXXSP/FP, M37210M4-XXXSP, M37211M2-XXXSP M37210E4-XXXSP/FP, M37210E4SP/FP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER 7 Fig. 2 Memory map MEMORY Special Function Register (SFR) Area The special function register (SFR) area in the zero page contains control 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 ROM is used for sroring user programs as well as the interrupt vec- tor area. RAM for Display RAM for display is used for specifing the character codes and colors to display. ROM for Display ROM for display is used for storing character data. Interrupt Vector Area The interrupt vector area contains reset and interrupt vectors. Zero Page The 256 bytes from addresses 000016 to 00FF16 are called the zero page area. The internal RAM and the special function registers (SFR) are allocated to this area. The zero page addressing mode can be used to specify memory and register addresses in the zero page area. Access to this area with only 2 bytes is possible in the zero page addressing mode. Special Page The 256 bytes from addresses FF0016 to FFFF16 are called the spe- cial page area. The special page addressing mode can be used to specify memory addresses in the special page area. Access to this area with only 2 bytes is possible in the special page addressing mode. 000016 00BF16 00FF16 013F16 017F16 200016 20B116 300016 35FF16 380016 3DFF16 FFDE16 FF0016 RAM (192 bytes) for M37211M2 RAM (256 bytes) for M37210M3 ROM for display (3 K bytes) ROM (8 K bytes) for M37211M2 Zero page Special page SFR area Not used Not used Not used Not used Interrupt vector area C00016 D00016 E00016 FFFF16 RAM for display (Note) (72 bytes) RAM (320 bytes) for M37210M4 ROM (12 K bytes) for M37210M3 ROM (16 K bytes) for M37210M4 Note : Refer to Table 6. Contents of CRT display RAM |
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