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M30620FCAFP Folha de dados(PDF) 544 Page - Renesas Technology Corp |
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M30620FCAFP Folha de dados(HTML) 544 Page - Renesas Technology Corp |
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544 / 615 page ![]() External Buses Mitsubishi microcomputers M16C / 62A Group SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER 2-227 4.3.2 8-bit Memory to 16-bit Width Data Bus Connection Example Figure 4.3.2 shows an example of connecting two M5M5278's (SRAM) to a 16-bit data bus.In this dia- gram, when reset the microcomputer starts operating in single-chip mode. Change this mode to memory expansion mode in a program. Microcomputer A1 to A15 D0 to D15 WRH CS0 RD CNVSS BYTE WRL M5M5278D A14 A0 to DQ1 DQ8 to W S OE M5M5278D A14 A0 to DQ1 DQ8 to W S OE A15 A1 to WRL D0 D7 to D8 D15 to WRH RD CS0 A15 A1 to CS0 RD Figure 4.3.2. Example of connecting two M5M5278's to a 16-bit data bus |
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