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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) 232 Page - Renesas Technology Corp |
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M38047FFHKP датащи(HTML) 232 Page - Renesas Technology Corp |
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232 / 387 page  2-108 APPLICATION 2.5 Multi-master I2C-BUS interface Rev.1.00 Jan 14, 2004 REJ09B0212-0100Z 3804 Group (Spec.H) ➀ Reception of START condition; Transmission of ACK bit due to slave address correspondence In the case of operation as the slave, all processes are performed in the interrupt after setting of the slave reception in the main process, because an interrupt request does not occur until correspondence of a slave address. In the first interrupt, after confirming correspondence of the slave address, write dummy data to receive a command into the I2C data shift register. Fig. 2.5.29 Reception process of START condition and slave address AAS (address 001316), bit 2 ? 1 (corresponded) 0 (not corresponded) End S0 (address 001116) ← 111111112 Error processing PIN (address 001316), bit 4 ? 1 (STOP condition) 0 (slave address received) 1 S1 (address 001316) ← 000100002 • Judgment of bus hold • Judgment of slave address correspondence • Slave receive mode set • Dummy data write to I2C data shift register |
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