IDT82V1671 Просмотр технического описания (PDF) - Integrated Device Technology
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производитель
IDT82V1671
Integrated Device Technology
IDT82V1671 Datasheet PDF : 107 Pages
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RSLIC (IDT82V1671) & CODEC (IDT82V1074) CHIPSET
INDUSTRIAL TEMPERATURE RANGE
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
3.9.5 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
3.9.6 Measurement via DC Level Meter..............................................................................................................................................45
3.9.6.1 Offset Current Measurement ......................................................................................................................................45
3.9.6.2 Leakage Current Measurement..................................................................................................................................45
3.9.6.3 Loop Resistance Measurement..................................................................................................................................46
3.9.6.4 Line Resistance Tip/GND and Ring/GND...................................................................................................................46
3.9.6.5 Capacitance Measurement.........................................................................................................................................47
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 Interface ............................................................................................................................................................................................................50
4.1 PCM/MPI Interface ..................................................................................................................................................................................50
4.1.1 MPI Control Interface .................................................................................................................................................................50
4.1.2 PCM Interface ............................................................................................................................................................................51
4.1.2.1 PCM Clock Configuration ...........................................................................................................................................51
4.1.2.2 Time Slot Assignment.................................................................................................................................................52
4.1.2.3 PCM Highway Selection .............................................................................................................................................52
4.2 GCI Interface ...........................................................................................................................................................................................52
4.2.1 Compressed GCI Mode..............................................................................................................................................................52
4.2.2 Linear GCI Mode ........................................................................................................................................................................52
4.2.3 Command/Indication (C/I) Channel ............................................................................................................................................55
4.2.3.1 Downstream C/I Channel Byte ...................................................................................................................................55
4.2.3.2 Upstream C/I Channel Byte........................................................................................................................................55
4.2.4 GCI Monitor Transfer Protocol....................................................................................................................................................56
4.2.4.1 Monitor Channel Operation ........................................................................................................................................56
4.2.4.2 Monitor Handshake Procedure...................................................................................................................................56
4.3 Analog POTS Interface............................................................................................................................................................................58
4.4 RSLIC and CODEC Interface ..................................................................................................................................................................58
5 Programming....................................................................................................................................................................................................59
5.1 Overview..................................................................................................................................................................................................59
5.1.1 MPI Programming ......................................................................................................................................................................59
5.1.1.1 Broadcast Mode for MPI Programming ......................................................................................................................59
5.1.1.2 Identification Code for MPI Programming...................................................................................................................59
5.1.2 GCI Programming ......................................................................................................................................................................59
5.1.2.1 Program Start Byte for GCI Programming..................................................................................................................59
5.1.2.2 Identification Command for GCI Programming...........................................................................................................59
5.2 Register/RAM Commands.......................................................................................................................................................................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 Registers Description ..............................................................................................................................................................................63
5.3.1 Registers Overview ....................................................................................................................................................................63
5.3.2 Global Registers List ..................................................................................................................................................................65
5.3.3 Local Registers List ....................................................................................................................................................................73
5.4 Programming Examples ..........................................................................................................................................................................83
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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