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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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M37274EFSP 데이터시트(PDF) 28 Page - Renesas Technology Corp |
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M37274EFSP 데이터시트(HTML) 28 Page - Renesas Technology Corp |
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28 / 148 page  27 SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER M37274EFSP PRELIMINARY Notice: This is not a final specification. Some paramentic limits are subject to change. MITSUBISHI MICROCOMPUTERS Fig. 21. Serial I/O Mode Register b7 b6 b5 b4 b3 b2 b1 b0 Serial I/O mode register (SM) [Address 021316] B Name Functions After reset RW Serial I/O Mode Register 0, 1 Internal synchronous clock selection bits (SM0, SM1) b1 b0 0 0: f(XIN)/4 or f(XCIN)/4 0 1: f(XIN)/16 or f(XCIN)/16 1 0: f(XIN)/32 or f(XCIN)/32 1 1: f(XIN)/64 or f(XCIN)/64 2 Synchronous clock selection bit (SM2) 3 Port function selection bit (SM3) 6, 7 5 Transfer direction selection bit (SM5) 0 0: P11, P13 1: SCL1, SDA1 0: External clock 1: Internal clock 0: LSB first 1: MSB first Fix these bits to “0.” 0 0 0 0 0 0 RW RW RW RW RW RW 0 4 Port function selection bit (SM4) 0: P12, P14 1: SCL2, SDA2 |
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