ADSP-21MOD970-110 datasheet, PDF

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ADSP-21MOD970-110: DescriptionMultiport Internet Gateway Processor Solution; File Size83KB，6 Pages; ManufacturerADI; Websitehttps://www.analog.com

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ADSP-21MOD970-110 Overview

Multiport Internet Gateway Processor Solution

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FEATURES

High Density

Implements Six Modem Channels in One Package

304-Ball PBGA with a 1.45 Square Inch (961 sq. mm.)

Footprint

ISDN B-Channel HDLC

DATA Modulations

CCITT V.90 (30 kbps–56 kbps)

K56Flex™ (30 kbps–56 kbps)

ITU-T V.34: 33600 Bits/s–2400 Bits/s

CCITT V.32bis: 14400 Bits/s–7200 Bits/s

CCITT V.32: 9600 Bits/s, 4800 Bits/s

CCITT V.23

CCITT V.22/V.22bis: 2400, 1200, 600 Bits/s

CCITT V.21: 300 Bits/s

Bell 212A: 1200 Bits/s

Bell 103: 300 Bits/s

Start-Up Procedures:

ITU-T V.8

Error Correction and Data Compression:

CCITT V.42 Error Correction (LAPM and MNP2-4)

CCITT V.42bis Data and MNP Class 5 Compression

FAX Modem

V.17/V.29/V.27ter/V.21 Channel 2

T.30 Protocol

V.120

V.110

PPP Asynchronous Framing Support (RFC 1662)

Low Power

80 mW per Channel Typical Active

Low Power and Sleep Modes

On-Chip DS0/DS1 Interface

Full Function DMA Port

No External Memory Required

3.3 V Supply

Fully Upgradable RAM-Based Architecture

Fast Download

Full Image in 5 ms

High Speed 16-Bit Port Link Bus Provides Simple

Interface Between Host and Modem Pool

Multiport Internet

Gateway Processor Solution

ADSP-21mod970-110

INTRODUCTION

The ADSP-21mod970-110 is a six-channel solution intended

for remote access server and remote access concentrator applica-

tions. It combines a highly integrated DSP processor with

downloadable software. All datapump and controller functions

are implemented on a single 1.45-square-inch chip. This modem

package allows the highest modem port density while achieving

the lowest power consumption in a software upgradable platform.

The ADSP-21mod970-110 is designed for high-density systems

such as remote access servers, see Figure 1. Its high performance

DSP core, large on-chip SRAM, TDM serial port and 16-bit

DMA port provide efficient control and data communication

with minimal chip count. The modem software provides a num-

ber of data modulations, such as V.34, 56 kbps PCM and ISDN

with a software upgrade path to future standards and new appli-

cations, such as voice over network. The host interface allows

system access to modem statistics such as call progress, connect

speed and modulation parameters such as retrain count and

symbol rate.

ON-CHIP SRAM

The ADSP-21mod970-110 processor integrates 960K bytes

of on-chip memory. The modem datapump and controller

software, as well as data storage, are contained in the on-chip

SRAM. The SRAM cells are designed by Analog Devices. These

cells are optimized for high speed digital signal processing and

low power consumption. You can dynamically configure the

ADSP-21mod970-110 with software through the 16-bit DMA

interface.

DMA INTERFACE

The 16-bit internal DMA port (DMA Port) provides transpar-

ent, direct access to the on-chip RAM of the ADSP-21mod970-110

processor. This high speed access to on-chip memory simpli-

fies control and data communication and system debug. Use the

16-bit DMA interface to dynamically configure the ADSP-

21mod970-110 with software.

K56Flex is a trademark of Rockwell International and Lucent Technologies.

REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

World Wide Web Site: http://www.analog.com

Fax: 781/326-8703

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