RS56L-PCI

The RS56L-PCI has the following features including V.8/V.8bis and V.251 (ex V.25 ter Annex A) commands;Data/Fax/Voice call discrimination;Switching to/from data and fax;Single profile stored in host;Modem and audio paths concurrent across PCI bus.

The Rockwell RS56L-PCI (SoftK56) Host-Processed V.90/K56flexä Modem Device supports high speed analog data up to 56 kbps, 14.4 kbps fax, voice/TAM,cellular phone, and speakerphone (optional) operation.The modem operates with PSTN telephone lines as well as analog and digital cellular phones in the U.S. and world-wide depending upon model and installed software drivers. The modem models are listed in Table 1. The modem is packaged in a single 144-pin thin quad flat pack (TQFP) that combines the PCI Bus Interface (BIF) and Line/Voice Codec (LVC) functions. Figure 1 identifies the major hardware signal interfaces supported by each model.Host modem and cellular phone driver software is provided.Operating with +3.3V power, this device set supports 32-bit host applications in such cellular-based mobile designs as laptop, notebook, and palmtop computers. The device is easily integrated into PCI Bus-based embedded motherboards, system boards, or plug-in cards.Modem data pump and controller functions, traditionally enabled using dedicated hardware, are processed in a Pentium MMX-compatible CPU using host-signal processing modem software.

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 speeds up to V.34 rates.In V.34 data mode, the modem 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 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) and voice annotation.