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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD7142 датащи(PDF) 26 Page - Analog Devices |
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AD7142 датащи(HTML) 26 Page - Analog Devices |
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26 / 68 page  AD7142 Rev. 0 | Page 26 of 68 STAGE0 STAGE1 STAGE2 STAGE3 STAGE4 STAGE5 STAGE6 STAGE7 STAGE8 STAGE9 STAGE10 STAGE11 23 1 INT CONVERSIONS SERIAL READS NOTES THIS IS AN EXAMPLE OF A CDC CONVERSION COMPLETE INTERRUPT. THIS TIMING EXAMPLE SHOWS THAT THE INTERRUPT OUTPUT HAS BEEN ENABLED TO BE ASSERTED AT THE END OF A CONVERSION CYCLE FOR STAGE0, STAGE5, AND STAGE9. THE INTERRUPTS FOR ALL OTHER STAGES HAVE BEEN DISABLED. STAGEx CONFIGURATION PROGRAMMING NOTES FOR STAGE0, STAGE5, AND STAGE9 (x = 0, 5, 9) STAGEx_LOW_INT_EN (ADDRESS 0x005) = 0 STAGEx_HIGH_INT_EN (ADDRESS 0x006) = 0 STAGEx_COMPLETE_EN (ADDRESS 0x007) = 1 STAGEx CONFIGURATION PROGRAMMING NOTES FOR STAGE 1 THROUGH STAGE 8, STAGE10, AND STAGE11 (x = 1, 2, 3, 4, 5, 6, 7, 8, 10, 11) STAGEx_LOW_INT_EN (ADDRESS 0x005) = 0 STAGEx_HIGH_INT_EN (ADDRESS 0x006) = 0 STAGEx_COMPLETE_EN (ADDRESS 0x007) = 0 SERIAL READBACK REQUIREMENTS FOR STAGE0, STAGE5 AND STAGE9. THIS READBACK OPERATION IS REQUIRED TO CLEAR THE INTERRUPT OUTPUT. 1. READ THE STAGE0_COMPLETE_STATUS_INT (ADDRESS 0x00A) REGISTER 2. READ THE STAGE5_COMPLETE_STATUS_INT (ADDRESS 0x00A) REGISTER 3. READ THE STAGE9_COMPLETE_STATUS_INT (ADDRESS 0x00A) REGISTER Figure 36. Example of Configuring the Registers for End of Conversion Interrupt Setup 42 1 INT CONVERSIONS SERIAL READS NOTES THIS IS AN EXAMPLE OF A SENSOR THRESHOLD INTERRUPT FOR A CASE WHERE THE LOW THRESHOLD LEVELS WERE EXCEEDED. FOR EXAMPLE: THE SENSOR CONNECTED TO STAGE0 AND STAGE9 WERE CONTACTED AND THE LOW THRESHOLD LEVELS WERE EXCEEDED RESULTING IN THE INTERRUPT BEING ASSERTED. THE STAGE6 INTERRUPT WAS NOT ASSERTED BECAUSE THE USER DID NOT CONTACT THE SENSOR CONNECTED TO STAGE6. STAGEx CONFIGURATION PROGRAMMING NOTES FOR STAGE 0, STAGE6, AND STAGE9 (x = 0, 6, 9) STAGEx_LOW_INT_EN (ADDRESS 0x005) = 1 STAGEx_HIGH_INT_EN (ADDRESS 0x006) = 0 STAGEx_COMPLETE_EN (ADDRESS 0x007) = 0 STAGEx CONFIGURATION PROGRAMMING NOTES FOR STAGE 1 THROUGH STAGE7, STAGE8, STAGE10, AND STAGE11 (x = 1, 2, 3, 4, 5, 6, 7, 8, 10, 11) STAGEx_LOW_INT_EN (ADDRESS 0x005) = 0 STAGEx_HIGH_INT_EN (ADDRESS 0x006) = 0 STAGEx_COMPLETE_EN (ADDRESS 0x007) = 0 SERIAL READBACK REQUIREMENTS FOR STAGE0 AND STAGE9. THIS READBACK OPERATION IS REQUIRED TO CLEAR THE INTERRUPT OUTPUT. 1. READ THE STAGE0_LOW_LIMIT_INT (ADDRESS 0x008) REGISTER 2. READ THE STAGE5_LOW_LIMIT_INT (ADDRESS 0x008) REGISTER STAGE0 STAGE1 STAGE2 STAGE3 STAGE4 STAGE5 STAGE6 STAGE7 STAGE8 STAGE9 STAGE10 STAGE11 Figure 37. Example of Configuring the Registers for Sensor Interrupt Setup |
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