DSP, Micros & Memory


Internet client access chip solutions unveiled

27 February 2002 DSP, Micros & Memory

To enable broadcasting, monitoring and exchanging content over the Internet, client access devices now require microcontroller functionality to handle network management, protocol and signalling, as well as digital signal processing functionality to manage audio, voice, data and fax signal processing.

A hybrid controller family that can assist embedded systems design engineers in meeting the challenges of delivering the Internet experience in both residential and commercial environments is now being offered by Motorola.

Historically, design engineers have addressed the challenges of adding control functions and processing power to systems by dividing the system tasks between multiple chips or even multiple-core solutions. Motorola was the first semiconductor manufacturer to integrate into a single core the performance of a traditional DSP with the control functionality of an MCU. This was its 56800 family. Today, Motorola offers a series of devices based on the 56800E core, that offers up to 120 MIPS of processing power, low power consumption, simplified programmability and enhanced compiler efficiency.

The company says the 56800E devices are suited for applications including packet telephony, feature phones with voice recognition, Internet telephony, integrated Internet access devices, as well as home automation systems such as security, lighting and HVAC. When used in conjunction with Motorola's 32 bit integrated microprocessors or microcontrollers, the 56800E devices effectively address SOHO and home networking equipment such as NICs, routers, bridges, hubs and residential gateways.

The 5685x family

The 56800E core was designed utilising Motorola's System-On-Chip (SoC) methodology. The company now makes available the new 56852, 56853, 56854, 56855, 56857 and 56858 MCU/DSP hybrid devices, which give embedded system designers a broad range of on-chip features providing flexibility for meeting varied price/performance requirements.

Features of the new 56800E-based DSP controllers include: hybrid DSP/MCU architecture delivering 120 MIPs at 120 MHz; 12 KB to 80 KB of program memory; 8 KB to 48 KB of data memory; external memory interface up to 6 MB; six channels of direct memory access; time-of-day functionality; COP/Watchdog timer; general-purpose 16 bit timers with digital-to-analog conversion functionality; synchronous serial interface with network and surround sound features; synchronous and asynchronous communications interface; serial and parallel host communications; fast interrupt capability; JTAG/Enhanced OnCE port for realtime, unobtrusive debugging; programmable general purpose input/output line.

Arrow Altech Distribution, 011 923 9600,

Avnet Kopp, 011 444 2333

EBV Electrolink, 021 421 5350



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

High-power semiconductor solutions for green hydrogen electrolyser applications
EBV Electrolink News
Gain insights into AC- and DC-coupled electrolyser applications and learn about Infineon’s best-in-class semiconductor solutions in the upcoming webinar.

Read more...
Take advantage of Wi-Fi 6, 6E
Altron Arrow Telecoms, Datacoms, Wireless, IoT
Infineon has provided a host of online resources to learn more about the technology and benefits involved with Wi-Fi 6.

Read more...
Arrow Electronics opens new primary distribution centre
Altron Arrow News
Arrow Electronics, represented in South Africa by Altron Arrow, announced that it has opened a new, state-of-the-art primary distribution centre in Venlo, the Netherlands.

Read more...
NXP releases real-time processors for automotive platforms
EBV Electrolink DSP, Micros & Memory
NXP has introduced real-time microcontrollers for automotive electronic control units as part of its S32 range of controllers.

Read more...
Altron Arrow FAE earns top award
Altron Arrow News
STMicroelectronics awards top trophy to Altron Arrow’s field application engineer for outstanding achievement in the certification course.

Read more...
Embedded voice control via the STM32Cube
EBV Electrolink DSP, Micros & Memory
STMicroelectronics and Sensory collaborate to enable mass-market adoption of embedded voice control through the STM32Cube software ecosystem.

Read more...
Power supply design considerations for remote patient monitors
Altron Arrow Power Electronics / Power Management
Remote patient monitors (RPMs) are continuously evolving to include new features which creates greater demands on their single-cell battery supply. A solution is provided for an ECG RPM that preserves battery life.

Read more...
Transient voltage suppression diodes
Altron Arrow Power Electronics / Power Management
The 24 V XClampR transient voltage suppressors, available in SMC packaging, deliver low clamping ratios for high power density.

Read more...
Simple replacement for legacy barrel jacks
Altron Arrow News
It is estimated that over 10 billion power tools are still using the old barrel jacks for their power needs, which will need to change.

Read more...
Digital ambient light sensor
EBV Electrolink Opto-Electronics
The device is a highly sensitive light-to-digital converter that transforms light intensity into a digital signal output through an I2C digital interface.

Read more...