ADSP-21MOD970 Analog Devices, ADSP-21MOD970 Datasheet

ADSP-21MOD970

Manufacturer Part Number

ADSP-21MOD970

Description

Multi-Port Internet Gateway Processor

Manufacturer

Analog Devices

Datasheet

1.ADSP-21MOD970.pdf (6 pages)

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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.

FEATURES

High Density

ISDN B-Channel HDLC

DATA Modulations

Start-Up Procedures:

Error Correction and Data Compression:

FAX Modem

V.120

V.110

PPP Asynchronous Framing Support (RFC 1662)

Low Power

3.3 V Supply

Fully Upgradable RAM-Based Architecture

Fast Download

High Speed 16-Bit Port Link Bus Provides Simple

Implements Six Modem Channels in One Package

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

ITU-T V.8

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

CCITT V.42bis Data and MNP Class 5 Compression

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

T.30 Protocol

80 mW per Channel Typical Active

Low Power and Sleep Modes

On-Chip DS0/DS1 Interface

Full Function DMA Port

No External Memory Required

Full Image in 5 ms

Interface Between Host and Modem Pool

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

Footprint

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.

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

Tel: 781/329-4700

Fax: 781/326-8703

Gateway Processor Solution

ADSP-21mod970-110

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

Multiport Internet

Related parts for ADSP-21MOD970

ADSP-21MOD970 Summary of contents

Page 1

... 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 ...

Page 2

... The serial ports operate under modem software control. SUPPORTED SYSTEM ARCHITECTURES The ADSP-21mod970-110 Multiport Internet Gateway Proces- sor supports two system architectures: serial Telco PCM TDM data stream and parallel Telco PCM data stream. The two archi- tectures are differentiated by the method of proving Telco PCM data to the DSP Modem ...

Page 3

... After the first write, the DMA address generator automatically increments; the host writes the next data word and the DMA transfers that word to the next location in ADSP-21mod970- 110 memory. The executable image contains code and data that must be loaded into program and data memory ...

Page 4

... ADSP-21mod970-110 Table IV. Modem Status Reference # Function MS. 0 Data Modulation State MS. 1 SNR MSE Measure MS Level dBm MS Level dBm MS V.34 Symbol Rate MS V.34 Symbol Rate MS. 6 Round Trip Delay MS. 7 Telemetry Data Update MS. 8 Constellation X MS. 9 Constellation Y MS. 10 Variable 2 X Pointer MS ...

Page 5

... Unit Software License Software Unit License RELATED DOCUMENTS For further information see the ADSP-21mod970 Multiport Internet Gateway Processor data sheet. ESD SENSITIVITY ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the ADSP-21mod970-110 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...

Page 6

... ADSP-21mod970-110 1.224 (31.10) 1.220 (31.00) SQ 1.217 (30.90) TOP VIEW 1.051 (26.70) 1.037 (26.35) SQ 1.024 (26.00) 0.100 (2.54) 0.092 (2.33) 0.083 (2.12) NOTE THE ACTUAL POSITION OF THE BALL POPULATION IS WITHIN 0.011 (0.30) OF ITS IDEAL POSITION RELATIVE TO THE PACKAGE EDGES. THE ACTUAL POSITION OF EACH BALL IS WITHIN 0.004 (0.10) OF ITS IDEAL POSITION RELATIVE TO THE BALL POPULATION. ...

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