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71M6534 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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71M6534 Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 132 page 
FDS_6533_6534_004 71M6533/G/H and 71M6534/H Data Sheet Rev 2 3 2.3.2 LCD Mode.................................................................................................................59 2.3.3 SLEEP Mode.............................................................................................................59 2.4 Fault and Reset Behavior ...................................................................................................65 2.4.1 Reset Mode...............................................................................................................65 2.4.2 Power Fault Circuit....................................................................................................65 2.5 Wake Up Behavior...............................................................................................................65 2.5.1 Wake on PB..............................................................................................................65 2.5.2 Wake on Timer..........................................................................................................66 2.6 Data Flow.............................................................................................................................66 2.7 CE/MPU Communication ....................................................................................................67 3 Application Information...............................................................................................................68 3.1 Connection of Sensors (CT, Resistive Shunt) ...................................................................68 3.2 Distinction between 71M6533/71M6534 and 71M6533G/H/71M6534H Parts..................... 68 3.3 Connecting 5 V Devices......................................................................................................69 3.4 Temperature Measurement.................................................................................................69 3.5 Temperature Compensation...............................................................................................69 3.5.1 Temperature Coefficients ..........................................................................................69 3.5.2 Temperature Compensation for VREF.......................................................................71 3.5.3 System Temperature Compensation..........................................................................72 3.5.4 Temperature Compensation for the RTC ...................................................................72 3.6 Connecting LCDs................................................................................................................72 3.7 Connecting I2C EEPROMs ..................................................................................................73 3.8 Connecting Three-Wire EEPROMs.....................................................................................73 3.9 UART0 (TX/RX)....................................................................................................................74 3.10 Optical Interface (UART1)...................................................................................................74 3.11 Connecting the V1 Pin ........................................................................................................75 3.12 Connecting the Reset Pin...................................................................................................75 3.13 Connecting the Emulator Port Pins....................................................................................76 3.14 Connecting a Battery ..........................................................................................................76 3.15 Flash Programming ............................................................................................................77 3.16 MPU Firmware Library ........................................................................................................77 3.17 Crystal Oscillator ................................................................................................................77 3.18 Meter Calibration.................................................................................................................78 4 Firmware Interface.......................................................................................................................79 4.1 I/O RAM and SFR Map –Functional Order..........................................................................79 4.2 I/O RAM Description – Alphabetical Order.........................................................................83 4.3 CE Interface Description.....................................................................................................95 4.3.1 CE Program ..............................................................................................................95 4.3.2 CE Data Format ........................................................................................................95 4.3.3 Constants..................................................................................................................95 4.3.4 Environment..............................................................................................................96 4.3.5 CE Calculations.........................................................................................................97 4.3.6 CE Front End Data (Raw Data)..................................................................................97 4.3.7 CE Status and Control...............................................................................................98 4.3.8 CE Transfer Variables .............................................................................................100 4.3.9 Temperature Measurement and Temperature Compensation .................................. 102 4.3.10 Pulse Generation.....................................................................................................102 4.3.11 Noise Suppression and Version Parameters............................................................ 104 4.3.12 CE Calibration Parameters......................................................................................104 4.3.13 CE Flow Diagrams ..................................................................................................105 |
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