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3886 Datasheet(PDF) 205 Page - Renesas Technology Corp |
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3886 Datasheet(HTML) 205 Page - Renesas Technology Corp |
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205 / 380 page ![]() 2-88 3886 Group User’s Manual APPLICATION 2.5 Multi-master I2C-BUS interface Fig. 2.5.17 Initial setting example S0D 0 0 10 0 0 1 b0 b7 0 S2 1 0 00 1 0 1 b0 b7 0 S1 01 0 b0 b7 S2D 01 b0 b7 00 0 1 1 S1D 1 00 b0 b7 00 0 1 0 1 I2C address register (address 1316) I2C clock control register (address 1616) I2C status register (address 1416) I2C START/STOP condition control register (address 1716) I2C control register (address 1516) Set slave address value A016. Set clock 100 kHz (XIN = 8MHz) Standard clock mode ACK is returned ACK clock SCL pin low hold bit: fix to “1” Slave receive mode Set setup time hold time to 27 cycles (6.75 µs: XIN = 8 MHz). SCL/SDA interrupt: Falling edge active SCL/SDA interrupt: SDA valid Set Setup/Hold time to “1” (long mode). Set number of transmit/receive bits to “8”. I2C-BUS interface: enabled Addressing format 7-bit addressing format System clock not stopped when WIT instruction is executed Set CMOS input level. |
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