Embedded computer: New small form factor specification

The Small Form Factor Special Interest Group (SFF-SIG), led by embedded computer integrator WinSystems, announced an interconnect specification.

04/16/2008


San Jose, CA The

Small Form Factor Special Interest Group

(SFF-SIG), led by embedded computer integrator WinSystems, announced an interconnect specification the group hopes will reduce the bite inter-module connections will take out of available board area for small form factor computer specifications, such as Express104 and Pico-ITX, now and well into the future.

The interface, named Sumit (pronounced “sum-it”) is an electromechanical connectorization specification using two, 52-pin high-density (0.025-in. pitch) connectors with center ground blades for impedance, electromagnetic interference (EMI), and dc ground return purposes.
Each connector is optional depending on the target applications of a particular computer. The Sumit Type A connector contains one PCI Express x1 (“by one”) lane, three USB ports with a global over-current signal, Low Pin Count (LPC) bus for expansion serial ports and other legacy I/O, SPI / uWire (“Microwire”), and a general-purpose I
The multitude of low speed buses will enable a smooth transition away from the long-standing ISA Bus for much of the embedded market that uses simple I/O for switching on relays or low-rate data acquisition, for example. The Sumit Type B connector adds another PCI Express x1 lane and a x4 (“by four”) lane, primarily for storage / RAID, networking, video output or frame grabbers, high-speed acquisition, and scientific applications. There are three valid configurations known as Sumit-A, Sumit-B, and for both connectors, Sumit-AB. Form factor details are distinct from the Sumit connector and pinout details, and are therefore left to those respective specifications.
“Embedded system designers are asking for simple, modular ways to embrace emerging high-speed I/O, yet without sacrificing connectivity to serial ports, A/D, and GPIOs,” said Bob Burckle, vice president, WinSystems . “Hanging multiple bus bridges, translators, and FPGAs off of a PCI Express lane to get to low-speed I/O is cumbersome, adding unnecessary risk, cost, power consumption, design and debug time, and board space usage.”
“The Small Form Factor area of the market appears to be one of the fastest growing segments, as evidenced by recent announcements,” said Colin McCracken, president, SFF-SIG. “The SFF-SIG provides an incubator organization structure under which specification sponsors can easily form a working group and develop solutions to their portions of this rapidly-evolving segment, with full access to broad inputs and reviews from the SIG’s diverse global membership. This is the optimum solution to a fragmented space.”
The news was discussed at the Embedded Systems Conference this week.
Control Engineering provides other embedded system news .

C.G. Masi , senior editor
Control Engineering News Desk
Register here and scroll down to select your choice of eNewsletters free .





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Salary and career survey: Benchmarks and advice; Designing controls; Remote data collection, historians; Control valve advances; Hannover Messe; Control Engineering International
System integration: Best practices and technologies to help; Virtualization virtues; Cyber security advice; Motor system efficiency, savings; Product exclusives; Road to Hannover
Collaborative robotics: How to improve safety, return on investment; Industrial Internet of Things, Industrie 4.0: World views; High-performance HMI, Information Integration: OPC and OMG
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
PLCs, robots, and the quest for a single controller; how OEE is key to automation solutions.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Digital oilfields: Integrated HMI/SCADA systems enable smarter data acquisition; Real-world impact of simulation; Electric actuator technology prospers in production fields
Special report: U.S. natural gas; LNG transport technologies evolve to meet market demand; Understanding new methane regulations; Predictive maintenance for gas pipeline compressors
click me