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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AMC7812SPAPR датащи(PDF) 53 Page - Texas Instruments |
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AMC7812SPAPR датащи(HTML) 53 Page - Texas Instruments |
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53 / 92 page  S Device Slave Address 0 A Register Pointer (Register Address) A Sr Device Slave Address 1 From Master to Slave A = Acknowledge N = Not Acknowledge S = START Condition P = Stop Condition Sr = Repeated START Condition From Slave to Master A From High Byte of Device Register A From Low Byte of Device Register N P AMC7812 www.ti.com SBAS513E – JANUARY 2011 – REVISED SEPTEMBER 2013 Reading a Single Word from Any Register (Figure 102) 1. The master device asserts a start condition. 2. The master then sends the 7-bit AMC7812 slave address followed by a zero for the direction bit, indicating a write operation. 3. The AMC7812 asserts an acknowledge signal on SDA. 4. The master sends a register address. 5. The AMC7812 asserts an acknowledge signal on SDA. 6. The master device asserts a restart condition. 7. The master then sends the 7-bit AMC7812 slave address followed by a '1' for the direction bit, indicating a read operation. 8. The AMC7812 asserts an acknowledge signal on SDA. 9. The AMC7812 then sends the high byte of the register (D15:D8). 10. The master asserts an acknowledge signal on SDA. 11. The AMC7812 sends the low byte of the register (D7:D0). 12. The master asserts a not acknowledge signal on SDA. 13. The master then asserts a stop condition to end the transaction. Figure 102. Read a Single Word Copyright © 2011–2013, Texas Instruments Incorporated Submit Documentation Feedback 53 Product Folder Links: AMC7812 |
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