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Analog Front End IC TMS37122 - Reference Guide
August ’01
Continued
Topic
Page
2.10
Configuration Memory.............................................................................32
2.10.1 Memory Organisation...........................................................................32
2.10.2 Default Memory Content ......................................................................33
2.10.3 Configuration Options ..........................................................................35
2.10.3.1 Wake Sensitivity VWAKEA/1......................................................35
2.10.3.2 Passive Start Sensitivity VWAKEB/1/2/3....................................36
2.10.3.3 Pulse Position Demodulator Threshold ......................................38
2.10.3.4 Wake Pattern Detection Flag 'NO_WAKE' .................................39
2.10.3.5 Write Distance Expander 2 Flag 'NO_WDE2'.............................39
2.10.3.6 Write Distance Expander 3 Flag 'NO_WDE3'.............................39
2.10.3.8 Passive Entry Wake Pattern.......................................................40
2.10.3.9 Passive Start Wake Pattern........................................................40
2.10.3.10Telegram Duration 'C_TELEGR'.................................................40
2.10.3.11Wake Pattern Waiting Time 'C_WAIT'........................................41
2.10.4 Memory Programming..........................................................................42
2.10.5 Memory Read.......................................................................................43
2.11
Resonant Circuit Trimming.....................................................................44
2.11.1 Resonance Frequency Measurement..................................................45
2.11.2 Trimming EEPROM Programming.......................................................47
2.11.3 Modulation Frequency Check ..............................................................47