RC56D, RC336D, and RC144D Modem Device Sets Designer’s Guide
iv
Conexant
1154
Programmable Inactivity Timer ........................................................................................... 2-3
DTE Signal Monitoring (Serial DTE Interface Only) ............................................................ 2-4
2.5
ERROR CORRECTION AND DATA COMPRESSION............................................................................. 2-4
V.42 Error Correction .......................................................................................................... 2-4
MNP 2-4 Error Correction ................................................................................................... 2-4
V.42 bis Data Compression ................................................................................................ 2-4
MNP 5 Data Compression .................................................................................................. 2-4
2.6
MNP 10 DATA THROUGHPUT ENHANCEMENT ................................................................................... 2-4
2.7
MNP 10EC™ ENHANCED CELLULAR CONNECTION .......................................................................... 2-4
2.8
FAX CLASS 1 AND FAX CLASS 2 OPERATION .................................................................................... 2-5
2.9
VOICE/AUDIO MODE .............................................................................................................................. 2-5
2.9.1
Online Voice Command Mode ................................................................................................... 2-5
2.9.2
Voice Receive Mode .................................................................................................................. 2-5
2.9.3
Voice Transmit Mode ................................................................................................................. 2-5
2.9.4
Audio Mode ................................................................................................................................ 2-5
2.9.5
Tone Detectors .......................................................................................................................... 2-5
2.9.6
Speakerphone Modes ................................................................................................................ 2-5
2.9.7
Sound Card Support Modes....................................................................................................... 2-6
2.10
SIMULTANEOUS AUDIO/VOICE AND DATA (AUDIOSPAN) ................................................................. 2-6
2.10.1
AudioSpan Mode Selection........................................................................................................ 2-6
2.10.2
AudioSpan Audio Interface ........................................................................................................ 2-6
2.10.3
Audio Quality Considerations..................................................................................................... 2-6
2.11
ON-BOARD DSVD MODE........................................................................................................................ 2-6
2.11.1
DSVD Handset Mode................................................................................................................. 2-6
2.11.2
DSVD Headset Mode................................................................................................................. 2-6
2.11.3
DSVD Half-Duplex Speakerphone (HDSP) Mode...................................................................... 2-6
2.12
HOST-BASED DSVD MODE.................................................................................................................... 2-7
2.13
FULL-DUPLEX SPEAKERPHONE (FDSP) MODE .................................................................................. 2-7
2.14
CALLER ID............................................................................................................................................... 2-7
2.15
WORLD CLASS COUNTRY SUPPORT .................................................................................................. 2-7
2.15.1
Dialing ........................................................................................................................................ 2-7
2.15.2
Carrier Transmit Level................................................................................................................ 2-7
2.15.3
Calling Tone ............................................................................................................................... 2-7
2.15.4
Call Progress Tone Detection .................................................................................................... 2-7
2.15.5
Answer Tone Detection.............................................................................................................. 2-8
2.15.6
Blacklist Parameters .................................................................................................................. 2-8
2.15.7
Relay Control ............................................................................................................................. 2-8
2.16
DIAGNOSTICS......................................................................................................................................... 2-8
2.16.1
Commanded Tests..................................................................................................................... 2-8
2.16.2
Power On Reset Tests ............................................................................................................... 2-8
2.17
LOW POWER SLEEP MODE................................................................................................................... 2-8
3.
HARDWARE INTERFACE ................................................................................................................................. 3-1
3.1
HARDWARE SIGNALS ............................................................................................................................ 3-1
3.2
INTERFACE TIMING AND WAVEFORMS............................................................................................. 3-23
3.2.1
External Memory Bus Timing ................................................................................................... 3-23
3.2.2
Parallel Host Bus Timing.......................................................................................................... 3-25
3.2.3
Serial DTE Interface................................................................................................................. 3-27
4.
PARALLEL HOST INTERFACE......................................................................................................................... 4-1
4.1
OVERVIEW .............................................................................................................................................. 4-1
4.2
REGISTER SIGNAL DEFINITIONS ......................................................................................................... 4-3
4.2.1
IER - Interrupt Enable Register (Addr = 1, DLAB = 0) ............................................................... 4-3
4.2.2
FCR - FIFO Control Register (Addr = 2, Write Only).................................................................. 4-4
4.2.3
IIR - Interrupt Identifier Register (Addr = 2)................................................................................ 4-5
4.2.4
LCR - Line Control Register (Addr = 3) ...................................................................................... 4-6
4.2.5
MCR - Modem Control Register (Addr = 4) ................................................................................ 4-7
4.2.6
LSR - Line Status Register (Addr = 5) ....................................................................................... 4-8
4.2.7
MSR - Modem Status Register (Addr = 6) ................................................................................. 4-9
4.2.8
RBR - RX Buffer (Receiver Buffer Register) (Addr = 0, DLAB = 0)............................................ 4-9
Summary of Contents for RC144D
Page 87: ...INSIDE BACK COVER NOTES ...
