3.2 DC Feeding .............................................................................................................................................................................................17
3.2.1 DC Feeding Characteristic Zones ..............................................................................................................................................17
3.2.2 Constant Current Zone...............................................................................................................................................................17
3.2.4 Constant Voltage Zone...............................................................................................................................................................17
3.2.5 DC Feeding Characteristics Configuration .................................................................................................................................18
3.3.1 AC Transmission ........................................................................................................................................................................20
3.3.2.3 Frequency Response Correction................................................................................................................................22
3.3.2.4 Gain Adjustment .........................................................................................................................................................22
3.4 Ring and Ring Trip...................................................................................................................................................................................23
3.4.1.2 Ring Trip Detection In Internal Ringing Mode.............................................................................................................23
3.4.2.1 Ring Trip Detection In External Ringing Mode............................................................................................................25
3.6 Metering by Polarity Reversal..................................................................................................................................................................29
3.7 Enhanced Signal Processing...................................................................................................................................................................30
3.7.1 Tone Generator ..........................................................................................................................................................................30
3.7.2 FSK Generation for Caller ID .....................................................................................................................................................30
3.7.3 Universal Tone Detection (UTD) ................................................................................................................................................34
3.8.3 Control the Active PCM Channels..............................................................................................................................................38
3.9.2 Diagnosis and Test Functions ....................................................................................................................................................40
3.9.3 Integrated Signal Generators .....................................................................................................................................................40
3.9.4.1 Level Meter Source Selection.....................................................................................................................................40
4
2
3
RSLIC (IDT82V1671) & CODEC (IDT82V1074) CHIPSET
INDUSTRIAL TEMPERATURE RANGE
3.9.5
3.9.6
3.9.4.2 Level Meter Gain Filter and Rectifier ..........................................................................................................................41
3.9.4.3 Level Meter Integrator ................................................................................................................................................42
3.9.4.4 Level Meter Result Register .......................................................................................................................................43
3.9.4.5 Level Meter Shift Factor .............................................................................................................................................43
3.9.4.6 Level Meter Threshold Setting....................................................................................................................................43
Measurement via AC Level Meter ..............................................................................................................................................45
3.9.5.1 Current Measurement via VTAC.................................................................................................................................45
3.9.5.2 AC Level Meter Operational State Flow .....................................................................................................................45
Measurement via DC Level Meter..............................................................................................................................................45
3.9.6.1 Offset Current Measurement ......................................................................................................................................45
3.9.6.2 Leakage Current Measurement..................................................................................................................................45
3.9.6.4 Line Resistance Tip/GND and Ring/GND...................................................................................................................46
3.9.6.6 Voltage Measurement ................................................................................................................................................48
3.9.6.7 Voltage Offset Measurement......................................................................................................................................49
3.9.6.8 Ring Trip Operational Amplifier Offset Measurement.................................................................................................49
4.1.1 MPI Control Interface .................................................................................................................................................................50
4.1.2.2 Time Slot Assignment.................................................................................................................................................52
4.2.2 Linear GCI Mode ........................................................................................................................................................................52
4.2.4 GCI Monitor Transfer Protocol....................................................................................................................................................56
4.3 Analog POTS Interface............................................................................................................................................................................58
4.4 RSLIC and CODEC Interface ..................................................................................................................................................................58
5.1.2.1 Program Start Byte for GCI Programming..................................................................................................................59
5.1.2.2 Identification Command for GCI Programming...........................................................................................................59
5.2.1 Register/RAM Command Format ...............................................................................................................................................59
5.2.2 Addressing the Local Registers..................................................................................................................................................59
5.2.3 Addressing the Global Registers................................................................................................................................................60
5.2.4 Addressing the FSK-RAM ..........................................................................................................................................................60
5.2.5 Addressing the Coe-RAM...........................................................................................................................................................61
5.3.2 Global Registers List ..................................................................................................................................................................65
5.3.3 Local Registers List ....................................................................................................................................................................73
5.4.1 Programming Examples for MPI Mode.......................................................................................................................................83
5.4.1.1 Example of Programming the Local Registers via MPI ..............................................................................................83
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PCB Design
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