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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M38047FFHKP датащи(PDF) 224 Page - Renesas Technology Corp |
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M38047FFHKP датащи(HTML) 224 Page - Renesas Technology Corp |
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224 / 387 page  2-100 APPLICATION 2.5 Multi-master I2C-BUS interface Rev.1.00 Jan 14, 2005 REJ09B0212-0100Z 3804 Group (Spec.H) (2) Communication example in master device The master device follows the procedures ➀ to ➅ shown by Figure 2.5.21. Additionally, the shaded area in the figure is a transmission data from the master device and the white area is a transmission data from the slave device. ➀ Generating of START condition; Transmission of slave address + write bit ➁ Transmission of command ➂ Generating of RESTART condition; Transmission of slave address + read bit ➃ Reception of lower data ➄ Reception of upper data ➅ Generating of STOP condition Figures 2.5.22 to 2.5.27 show the procedures ➀ to ➅. Fig. 2.5.21 Read Word protocol communication as SMBUS master device A Sr A P R/W A R/W A A S ➀ ➁➂ ➃ ➄ ➅ Slave address 7 bits “0” 8 bits7 bits8 bits8 bits “1” Slave address Command Interrupt request Interrupt request Interrupt request Interrupt request Interrupt request Lower data Upper data Master to slave Slave to master S: START condition A: ACK bit Sr: RESTART condition P: STOP condition R/W: Read/Write bit Write Read |
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