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| 型号： | MC143457EVK |
| 厂商： | Motorola, Inc. |
| 英文描述： | Multichannel Infrastructure Modem(多通道基础结构调制解调器) |
| 中文描述： | 多通道基础设施调制解调器（多通道基础结构调制解调器） |
| 文件页数： | 1/4页 |
| 文件大小： | 27K |
| 代理商： | MC143457EVK |
MC143457EVK
MOTOROLA
1
Product Preview
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The Motorola MC143457EVK is a complete modem solution for infrastructure modem applications. This DSP–based
Multichannel Infrastructure Modem (MIM) is completely upgradable via software, which ensures that the MIM Evaluation Kit is
ready to receive the latest in field upgrades and infrastructure applications such as vocoders for voice over internet protocol, and
gateway hosting. The MC143457EVK offers an enabling evaluation system to address the infrastructure modem market.
Combining the controller functionality of the PowerPC
MPC860 product family with the high performance DSP56300 family and
glueless, low power FSRAM devices allows Motorola to provide a total system solution.
The MC143457EVK comes complete with all the hardware and software needed to evaluate an analog modem “head end,” or
modem termination system. The data pump software provides a direct digital, 8 kHz sampled, PCM data interface. This allows
a seamless digital TDM connection onto an E1/T1 interface, eliminating the need for codecs and other costly glue hardware.
Another key benefit of this solution is the memory efficiency of the re–entrant modem software, allowing a highly scalable and
upgradable architecture.
The MC143457EVK is designed to enable the evaluation of the performance and functionality of the entire Motorola solution.
The board consists of three main parts: the main MEP board, an additional network interface daughter card, and an optional
SIMM–style daughter card, which consists of an additional five DSP56303s with associated 128K x 24 FSRAM devices.
The MEP board consists of four DSP56303s. The first three DSP56303s each have a single 128K x 24 asynchronous FSRAM
(MCM6341). In addition, the final DSP56303 has 256K x 24 assigned to it in the form of two 128K x 24 devices, to enable more
software flexibility if required. These are all controlled by an MPC860 PowerPC controller. Each of the DSP56303s can handle
up to three full–duplex V.90/V.34 (1996) modem channels simultaneously.
The MC143457EVK offers a cost effective solution that enables multiple modem channels to run on a single DSP56303, while
enabling a concentrated low power consuming design, which is adaptable to suit the needs of both telecom equipment providers
and remote access systems manufacturers.
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.
PowerQUICC is a trademark of Motorola, Inc. All brand names and product names in this document are trademarks or registered trademarks
of their respective holders.
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