RL56CSMV-6-35LP 데이터 시트보기 (PDF) - Conexant Systems

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RL56CSMV-6-35LP

AnyPort™ Multi-Service Access Processor

Conexant Systems 

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AnyPort™ Multi-Service Access Processor

The RL56CSMV/6 is a member of the Conexant™ AnyPort™

family of multi-service access processors, and provides a

complete solution to the transport of multiple media types

between circuit-switched remote access and a variety of back-

end networks (Table 1). AnyPort processors are ideally suited

for the network infrastructures resulting from the convergence

of voice and data networking, addressing new requirements

such as Voice and Fax over packet networks, ISDN and Cellular

Data, while maintaining support of traditional PSTN Data/Fax

needs.

The processor and data pumps use an internal core voltage of

+2.5V, supplied by external pins (VCORE), for low power

consumption.

The RL56CSMV/6 transcends existing modem solutions by

providing a complete system solution for multi-service remote

access. The combined DSP/RISC architecture provides an ideal

engine to run Conexant’s extensive suite of field-proven

modulations, echo cancellers, voice coders, and

communications protocols. In addition, performing functions

such as T.38, V.120, async-to-sync HDLC conversion for PPP,

V.110, and synchronous HDLC for PPP on ISDN connections,

in the access processor allows system designers to reduce

system overhead and increase scalability.

The RL56CSMV/6 is a low-power system providing six

communication channels in a single package. Powerful and

downloadable DSP-based data pumps employ on-chip SRAM

to allow upgrades to future voice and communication

modulation schemes. An advanced RISC microcontroller

manages three dual data pumps simultaneously. An innovative

host interface to the Multi-Service Access Processor system

uses a shared SDRAM memory to increase data throughput

while reducing system cost and space. A programmable time

slot selection feature provides direct digital connection to a

T1/E1/PRI framing device.

A 35mm BGA package houses the RL56CSMV/6 with extra

balls available for thermal vias to minimize heat. A built-in

phase lock loop (PLL) minimizes board noise while easing

design. A quick-wake sleep mode further reduces power

consumption on idle channels.

Features

Generic

• Six access channels in one package

• +3.3V/+2.5V operation with +5V tolerant inputs

• Downloadable controller firmware and data pump code

• Advanced RISC Machines (ARM) architecture

• Low-power sleep mode with quick wake

• Glueless interface to Conexant Bt8370 T1/E1/PRI framer with time

slot selection

• Built-in phase lock loop (PLL)

Signaling

• DTMF detection and generation

• Multi-frequency tone support for legacy network equipment (R1

and R2)

Data

• Data modem modes

− PSTN: ITU-T V.90, K56flex, K56Plus, V.34 (33.6 kbps), V.FC,

V.32 bis, V.32, V.22 bis, V.22A/B, V.23, and V.21; Bell 212A

and 103

− ISDN: 64/56 kbps ISDN Basic Rate Interface B Channel HDLC

control, or data pass-through mode for HDLC processing

elsewhere in the central site system

• Internal error correction and data compression (ECC)

− V.42 LAPM and MNP 2-4 error correction

− V.42 bis and MNP 5 data compression

− MNP 10EC™ enhanced cellular

• Async/sync HDLC conversion

• V.120 ISDN data

• V.110 cellular data

• LAP-B X.75

Voice

• Baseline configuration:

− G.723.1 and G.723.1 Annex A

− G.711 µ-law and A-law

− G.729 Annex A and Annex B

− G.168 128 ms Network Echo Canceller

• Patented robust jitter buffer

• Voice API using Mailbox Messages

FAX

• Fax modem send and receive rates up to 33600 bps

• V.34, V.17, V.33, V.29, V.27 ter, and V.21 channel 2,

Group 3, T.30 protocol and Class 1, 2 supported

• T.38 real-time fax protocol

Communications software-compatible AT commands

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