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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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M16C/29 Datenblatt(PDF) 310 Page - Renesas Technology Corp |
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M16C/29 Datenblatt(HTML) 310 Page - Renesas Technology Corp |
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310 / 499 page  16. MULTI-MASTER I2C bus INTERFACE p u o r G 9 2 / C 6 1 M page 286 8 5 4 f o 7 0 0 2 , 0 3 .r a M 2 1 . 1 . v e R 2 1 1 0 - 1 0 1 0 B 9 0 J E R (2) Generation of RESTART condition In order to generate a RESTART condition after 1-byte data transfer, write E016 to the S10 register, enter START condition standby mode and leave the SDAMM open. Generate a START condition trigger by setting the S00 register after inserting a sufficient software wait until the SDAMM outputs a high-level ("H") signal. Figure 16.24 shows the RESTART condition generation timing. Figure 16.24 The time of generation of RESTART condition 8 clocks ACK clock SCL S10 writing signal (START condition setting standby) SDA S00 writing signal (START condition triger generation) Insert software wait (3) Iimitation of CPU clock When the CM07 bit in the CM0 register is set to 1 (subclock), each register of the I2C bus interface circuit cannot be read or written. Read or write data when the CM07 bit is set to 0 (main clock, PLL clock, or on-chip oscillator clock). |
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