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71M6534 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part No. 71M6534
Description  Exceeds IEC 62053/ANSI C12.20 Standards
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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71M6534 Datasheet(HTML) 3 Page - Maxim Integrated Products

 
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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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