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7480 Datasheet(PDF) 32 Page - Renesas Technology Corp |
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7480 Datasheet(HTML) 32 Page - Renesas Technology Corp |
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32 / 337 page  7480 Group and 7481 Group User's Manual 1-15 HARDWARE 1.7 Central Processing Unit (CPU) The 7480 Group and 7481 Group have the CPU common to the 740 family. For the description of the instructions, refer to the following: • Section 3.6 Machine Instructions • 740 FAMILY CPU CORE BASIC FUNCTIONS: ADDRESSING MODE in data book SINGLE CHIP 8-BIT MICROCOMPUTERS • SERIES 740 <SOFTWARE> USER’S MANUAL The instructions which characterize the group are as follows: 1. FST and SLW instructions are excluded. 2. MUL and DIV instructions are available. 3. WIT instruction is available (Note). 4. STP instruction is available (Note). Note: For the above instructions, refer to Section 1.19 Power Saving Function. The CPU has the six registers (CPU internal registers). Figure 1.7.1 shows the CPU internal registers. 1.7 Central Processing Unit (CPU) Figure 1.7.1 CPU Internal Registers Accumulator Index register X Index register Y Stack pointer Program counter Processor status register (PS) Carry flag Zero flag Interrupt disable flag Decimal mode flag Break flag Index X mode flag Overflow flag Negative flag A X Y S PCH PCL NC Z I D B T V 0 7 0 7 0 7 0 7 0 7 0 7 8 15 |
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