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M32C83T датащи(PDF) 83 Page - Renesas Technology Corp |
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M32C83T датащи(HTML) 83 Page - Renesas Technology Corp |
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83 / 527 page ![]() Page 60 8 8 4 f o 6 0 0 2 , 1 3 . n a J 1 3 . 1 . v e R 1 3 1 0 - 4 3 0 0 B 9 0 J E R 7. Bus ) T 3 8 / C 2 3 M , 3 8 / C 2 3 M ( p u o r G 3 8 / C 2 3 M Figure 7.4 External Bus Operation with Software Wait State (1) Output Input Address Address Bus cycle(1) (2) Separate Bus with 1 Wait State BCLK Read Signal Write Signal Data Bus Address Bus(2) Chip-Select Signal(2, 3) BCLK Read Signal Data Bus Chip-Select Signal(2, 3) Data Output Address Address Bus(2) Address Input (3) Separate Bus with 2 Wait States Write Signal BCLK Read Signal Write Signal Address Bus(2) Address Bus cycle(1) (1) Separate Bus with No Wait State Output Data Bus Chip-Select Signal(2, 3) Input Bus cycle(1) Bus cycle(1) Bus cycle(1) Bus cycle(1) Address NOTES: 1. This example illustrates bus cycle length. Read cycle and write cycle may occur consecutively. 2. The address bus and chip-select signal may be extended depending on CPU state such as an instruction queue buffer. 3. When the microcomputer continuously accesses the same external space (same CS area), the chip- select signal may be output continuously. |
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