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Power Issues in Edge Card Systems

From Trenton Technology, Inc.
 

 
The term 'edge card” has a wide variety of meanings in embedded computing. In this article an edge card system is either a system using a combination of PCI-X/PCI edge cards with either ISA or PCI Express cards. Industry standards are available that define among other things power specifications such as voltage levels, power pin placements, power requirements, etc. Specifically, PICMG 1.0/1.2 industry specifications define these power specifications for the parallel bus systems that contain PCI-X, PCI or ISA edge cards. A new standard called SHB Express or PICMG 1.3 defines the power specifications for systems that use PCI Express to communicate from the system host board to the backplane.
Products & Services
PCI bridges are semiconductors used to expand the number of slots available on PCI devices. Learn more about IC PCI Bridges
CPU cards and modules are computer boards that contain the central processing unit (CPU) of a computer. Learn more about CPU Cards and Modules
Parallel communications products are used in industrial and commercial systems to transmit character data (byte) by sending the bits down parallel electrical paths simultaneously. Learn more about Parallel Communications Products
PCI Express products (PCIe products) use a computer protocol and interface format which communicates more quickly than peripheral component interconnect (PCI), a standard which PCIe is designed to replace. Search by Specification | Learn more about PCI Express Products
Bus extenders are used to increase cable lengths for distance-limited bus protocols. Search by Specification | Learn more about Bus Extenders
Topics of Interest
In all applications, bandwidth requirements for data transmission and processing are constantly rising. Existing PCI infrastructure should continue to be used here as much as possible. At least in the... (Read More)
For more than a decade, the PC/104 form factor has used the ISA bus for rugged and easy-to-design add-in cards. More recently, an extended PC/104 format has gained industry acceptance. This variation,... (Read More)
CompactPCI (cPCI) CompactPCI (cPCI), initiated in late 1994 by Ziatech Corporation under the auspices of the PCI Industrial Computer Manufacturers Group (PICMG), is the newest specification for... (Read More)
PCI Express is the peripheral bus now being adopted by next generation PCs, servers, and industrial computers. It provides a scaleable, high-bandwidth, point-to-point pathway between peripheral cards... (Read More)
PCI Express increases signaling speed and bandwidth of the PCI interface for today's desktop and server applications. PCI Express is a third generation I/O architecture. PCI-SIG recently released the... (Read More)
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