CX81801-7x/8x SmartV.XX Modem Data Sheet
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
2.4.9
Speed Buffering (Normal Mode) .................................................................................................................... 2-4
Flow Control ................................................................................................................................................... 2-4
Escape Sequence Detection............................................................................................................................ 2-4
BREAK Detection............................................................................................................................................ 2-4
Telephone Line Monitoring............................................................................................................................. 2-4
Fall Forward/Fallback (V.92/V.90/V.34/V.32 bis/V.32) ................................................................................... 2-4
Retrain............................................................................................................................................................ 2-5
Programmable Inactivity Timer...................................................................................................................... 2-5
DTE Signal Monitoring (Serial DTE Interface Only)........................................................................................ 2-5
2.5
2.6
V.92 Features.................................................................................................................................................................. 2-5
2.5.1
2.5.2
2.5.3
Modem-on-Hold............................................................................................................................................. 2-5
Quick Connect ................................................................................................................................................ 2-6
PCM Upstream ............................................................................................................................................... 2-6
Error Correction and Data Compression......................................................................................................................... 2-6
2.6.1
2.6.2
2.6.3
2.6.4
2.6.5
V.42 Error Correction ..................................................................................................................................... 2-6
MNP 2-4 Error Correction .............................................................................................................................. 2-6
V.44 Data Compression.................................................................................................................................. 2-6
V.42 bis Data Compression............................................................................................................................ 2-6
MNP 5 Data Compression.............................................................................................................................. 2-7
2.7
Telephony Extensions..................................................................................................................................................... 2-7
2.7.1
2.7.2
2.7.3
Line In Use Detection ..................................................................................................................................... 2-7
Extension Pickup Detection............................................................................................................................ 2-7
Remote Hangup Detection.............................................................................................................................. 2-8
2.8
2.9
Fax Class 1 and Fax Class 1.0 Operation ........................................................................................................................ 2-8
Point-of-Sales Support................................................................................................................................................... 2-8
2.10 Voice/Audio Mode .......................................................................................................................................................... 2-8
2.10.1
2.10.2
2.10.3
2.10.4
2.10.5
2.10.6
2.10.7
Online Voice Command Mode........................................................................................................................ 2-8
Voice Receive Mode ....................................................................................................................................... 2-8
Voice Transmit Mode ..................................................................................................................................... 2-9
Full-Duplex Receive and Transmit Mode........................................................................................................ 2-9
Audio Mode .................................................................................................................................................... 2-9
Tone Detectors ............................................................................................................................................... 2-9
Speakerphone Mode....................................................................................................................................... 2-9
2.11 V.80 Synchronous Access Mode (SAM) - Video Conferencing...................................................................................... 2-9
2.12 Full-Duplex Speakerphone (FDSP) Mode (S Models)................................................................................................... 2-10
2.13 Caller ID........................................................................................................................................................................ 2-10
2.14 Worldwide Country Support......................................................................................................................................... 2-10
2.15 Diagnostics................................................................................................................................................................... 2-11
2.15.1
2.15.2
Commanded Tests........................................................................................................................................ 2-11
Power On Reset Tests .................................................................................................................................. 2-11
2.16 Low Power Sleep Mode................................................................................................................................................ 2-12
3. Hardware Interface ...............................................................................................................................3-1
3.1
CX81801 Modem Hardware Pins and Signals................................................................................................................ 3-1
3.1.1 Common to Parallel and Serial Interface Configurations................................................................................ 3-1
3.1.1.1
3.1.1.2
3.1.1.3
3.1.1.4
3.1.1.5
LSD Interface (Through DIB)...................................................................................................... 3-1
Call Progress Speaker Interface ................................................................................................. 3-1
Voice Relay Interface (S Models)............................................................................................... 3-1
Serial EEPROM Interface............................................................................................................ 3-1
External Bus Interface ................................................................................................................ 3-2
iv
Conexant
102199B
CONEXANT [ CONEXANT SYSTEMS, INC ]
