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M38044F0HKP датащи(PDF) 231 Page - Renesas Technology Corp |
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M38044F0HKP датащи(HTML) 231 Page - Renesas Technology Corp |
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231 / 387 page ![]() 2-107 APPLICATION 2.5 Multi-master I2C-BUS interface Rev.1.00 Jan 14, 2004 REJ09B0212-0100Z 3804 Group (Spec.H) (3) Communication example in slave device The slave device follows the procedures ➀ to ➅ shown by Figure 2.5.28. The only difference from the master device’s communication is an occurrence of interrupt request after detection of STOP condition. ➀ Reception of START condition; Transmission of ACK bit due to slave address correspondence ➁ Reception of command ➂ Reception of RESTART condition; Reception of slave address + read bit ➃ Transmission of lower data ➄ Transmission of upper data ➅ Reception of STOP condition Figures 2.5.29 to 2.5.34 show the procedures ➀ to ➅. Fig. 2.5.28 Communication example as SMBUS slave device A Sr A P R/W A R/W A A S Master to slave Slave to master S: START condition A: ACK bit Sr: RESTART condition P: STOP condition R/W: Read/Write bit ➀ ➁ ➂➃➄ ➅ Slave address 7 bits “0” 8 bits 7 bits 8 bits 8 bits “1” Slave address Command Interrupt requestInterrupt request Interrupt request Interrupt requestInterrupt request Lower data Upper data Interrupt request Write Read |
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