RH56D-PCI

· Data modem
   - ITU-T V.90, K56flex, V.34 (33.6 kbps), V.32 bis, V.32,
     V.22 bis, V.22, V.23, and V.21; Bell 212A and 103
   - V.42 LAPM and MNP 2-4 error correction
   - V.42 bis and MNP 5 data compression
   - V.250 (ex V.25 ter) and V.251 (ex V.25 ter Annex A) commands
   - Fax modem send and receive rates up to 14.4 kbps
     ITU-T V.17, V.29, V.27 ter, and V.21 channel 2
   - EIA/TIA 578 Class 1 and T.31 Class 1.0 commands
· Voice, telephony, TAM
   - V.253 commands
   - 8-bit m-Law/A-Law coding (G.711)
   - 8-bit/16-bit linear coding
   - 8000/7200 Hz sample rate
   - Music on hold from host or analog hardware input
   - TAM support with concurrent DTMF detect, ring detect and caller ID
· V.80 synchronous access mode supports host-controlled communication protocols
   - H.324 interface support
· V.8/V.8bis and V.251 (ex V.25 ter Annex A) commands
· Full-duplex Speakerphone (FDSP) Mode (SP model)
   - Telephone handset interface
   - External microphone and speaker interface
   -Microphone gain and muting
   - Speaker volume control and muting
   - Adaptive acoustic, line, and handset echo cancellation
   - Loop gain control, transmit and receive path AGC
· Data/Fax/Voice call discrimination
· Multiple country support
   - Call progress, blacklisting
· Single profile stored in host
· Modem and audio paths concurrent across PCI Bus
· System compatibilities
   - Windows 95, Windows 95 OSR2, Windows 98,Windows NT 4.0, Windows NT 5.0 operating systems
   - Microsoft's PC 98 Design Initiative compliant
   - Unimodem/V compliant
   - Pentium 133 MHz equivalent or greater
   - 16 Mbyte RAM or more
· 32-bit PCI Local Bus interface
   - Conforms to the PCI Local Bus Specification,Production Version, Revision 2.1
   - PCI Bus Mastering interface to the MDP
   - 33 MHz PCI clock support
· Supports PCI Bus Power Management
   - Conforms to PCI Bus Power Management Specification, Rev. 1.1
   - ACPI Power Management Registers
   - APM support
   - PME# support
· Device package
   - R6795 Modem: 144-pin TQFP (1.6 mm max. height)
· +3.3V operation with +5V tolerant digital inputs
· +5V or +3.3V analog operation

The Conexant^TMRH56D-PCI V.90/K56flex^TM Host Controlled Modem Device Family supports high speed analog data up to 56 kbps, 14.4 kbps fax, voice/TAM, and speakerphone (optional) operation. The modem operates with PSTN telephone lines in the U.S. and world-wide.The modem is available with or without speakerphone support (see Table 1).

The modem RH56D-PCI is packaged in a single 144-pin thin quad flat pack (TQFP) that combines PCI Bus Interface (BIF) and Modem Data Pump (MDP) functions. This modem is pincompatible with the SoftK56-PCI modem, part number R6793 (see SoftK56-PCI data sheet Order No. MD231).

Host modem RH56D-PCI software is also provided.

Operating with +3.3V power, this device RH56D-PCI set supports 32-bit host applications in such designs as embedded motherboards and PCI half cards. Downloadable architecture allows updating of MDP executable code.

In ITU-T V.90/K56flex data mode, the modem RH56D-PCI can receive data at speeds up to 56 kbps from a digitally connected V.90 or K56flex-compatible central site modem. A V.90/K56flex modem takes advantage of the PSTN which is primarily digital except for the client modem to central office local loop and is ideal for applications such as remote access to an Internet Service Provider (ISP), online service, or corporate site. In this mode, the modem can transmit data at peeds up to V.34 rates.

In V.34 data mode, the modem RH56D-PCI operates at line speeds up to 33.6 kbps. When applicable, error correction(V.42/MNP 2-4) and data compression (V.42 bis/MNP 5) maximize data transfer integrity and boost average data throughput. Non-error-correcting mode is also supported.

All models RH56D-PCI support remote audio recording and remote audio playback over the telephone line interface using ALaw,
m-Law, or linear coding at 8000 or 7200 Hz sample rate to support applications such as digital telephone answering machine (TAM).

The SP model RH56D-PCI supports position independent, full-duplex speakerphone (FDSP) operation.

Fax Group 3 send and receive rates are supported up to 14.4 kbps with T.30 protocol.

V.80 synchronous access mode supports host-controlled communication protocols, e. g., H.324 video conferencing.

Reference design kits are available to minimize application design time and costs.