comment on this article

Best of friends?

Untethered devices need not sacrifice a wired data connection. By Philip Ling.

It would be easy to assume that all portable devices today are connected wirelessly and that plain old 10/100 Ethernet is a thing of the past. But it isn’t the case; apparently, support for wired lans is still required in non pc devices. This is a problem for the low power embedded processors typically used in this class of device, because they will have often sacrificed a PCI interface in favour of a lower pin count or operating power.
PCI is still the most prominent interface for wired lan interfaces developed for the pc environment. The pc industry has a history of standardisation in order to keep costs down; if the same is to be true for portable computing devices, then PCI is the obvious format to adopt. Without a PCI interface, however, interfacing a low power embedded processor to a PCI peripheral – in this case Ethernet – becomes slightly more challenging.
An example is Intel’s PXA processor, a heavyweight in terms of portable processors but without the prerequisite PCI interface. The solution Intel has adopted is a companion device, developed by QuickLogic, which provides an interface between the PXA and Intel’s wired Ethernet controllers.
Based on QuickLogic’s QuickPCI family of programmable bridge controllers, it represents the third companion device for the PXA, further enabling Intel’s push into embedded applications.

Author
Graham Pitcher

Comment on this article


This material is protected by MA Business copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team.

What you think about this article:


Add your comments

Name
 
Email
 
Comments
 

Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

Arrow camera modules

Arrow Electronics has introduced a family of plug-and-play camera modules based ...

Smart construction

For an industry that accounts for 6% GDP worldwide, construction players have ...

A silver lining

A forced migration from 5G spectrum bands may have a silver lining, as William ...

AFE031

Enabling the Smart Grid, Power Line Communications is a cost effective way to ...

Tech trends

Last year was a busy one for technology and 2018 is unlikely to be any ...

Broadband upgrade

BT has made an offer to the government to spend £600million to deliver 10Mbps ...

Improving cancer care

Mirada Medical’s imaging technology is helping to accelerate cancer care by ...

Building resilience

James Woodhead talks to New Electronics about the need to build greater ...