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7721 Datasheet(PDF) 22 Page - Renesas Technology Corp |
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7721 Datasheet(HTML) 22 Page - Renesas Technology Corp |
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22 / 577 page  DESCRIPTION 7721 Group User’s Manual 1–7 1.4 Block diagram Figure 1.4.1 shows the M37721 block diagram. 1.4 Block diagram Data Buffer DBL (8) Instruction Queue Buffer Q2 (8) Data Bank Register DT (8) Program Counter PC (16) Incrementer/Decrementer (24) Program Bank Register PG (8) Input Buffer Register IB (16) Direct Page Register DPR (16) Stack Pointer S (16) Index Register Y (16) Index Register X (16) Arithmetic Logic Unit (16) Accumulator A (16) Data Bus (Odd) Incrementer (24) Program Address Register PA (24) Data Address Register DA (24) Address Bus Processor Status Register PS (11) Note: For the M37721S1BFP, the RAM size is 512 bytes. Accumulator B (16) Instruction Queue Buffer Q1 (8) Instruction Queue Buffer Q0 (8) Data Buffer DBH (8) Data Bus (Even) Fig. 1.4.1 M37721 block diagram |
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