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M32C/86 数据表(PDF) 88 Page - Renesas Technology Corp |
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M32C/86 数据表(HTML) 88 Page - Renesas Technology Corp |
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88 / 505 page ![]() Page 65 9 7 4 f o 5 0 0 2 , 8 0 . p e S 0 0 . 1 . v e R 0 0 1 0 - 4 0 2 0 B 9 0 J E R 8. Bus ) T 6 8 / C 2 3 M , 6 8 / C 2 3 M ( p u o r G 6 8 / C 2 3 M Figure 8.7 Bus Cycle with Multiplexed Bus (1) LA : Latch Address RD : ReadData WD : Write Data LA RD LA WD LA RD LA WD LA RD LA WD • Bus Cycle 2 φ + 2φ BCLK CSi (1) Data (Read) RD Data (Write) WR (WRL) ALE 1 bus cycle = 4 φ • Bus Cycle 2 φ + 3φ 1 bus cycle = 5 φ • Bus Cycle 2 φ + 5φ 1 bus cycle = 7 φ i=0 to 3 NOTES: 1. When the microcomputer continuously accesses the same CS area, the CSi pin provides an "L" signal continuously. BCLK CSi (1) Data (Read) RD Data (Write) WR (WRL) ALE BCLK CSi (1) Data (Read) RD Data (Write) WR (WRL) ALE |
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