Bridges

This paper describes issues hardware manufacturers should consider when designing hardware that includes PCI-to-PCI bridges or CardBus controllers, including resource allocation, problems associated with installing CardBus controllers behind PCI-to-PCI bridges, installing more than one device behind a CardBus controller, waking the system from a device behind a PCI-to-PCI bridge, the lack of subsystem IDs on PCI-to-PCI bridges and configuring PCI-to-PCI bridges with VGA cards. tech news

A bridge that is fully compliant with the PCI-to-PCI bridge specification can support both subtractive and positive decode types. However, Windows 2000, Windows XP, and Windows Server 2003 do not fully support these bridge types. Current plans are to include support for these subtractive bridges in Windows Longhorn. This paper provides information about how the Microsoft Windows family of operating systems handle subtractive PCI-to-PCI bridges. It provides guidelines for device manufacturers and driver developers to understand how Windows supports PCI-to-PCI bridges. tech news

In the 41210 Bridge, some of the current errata (19, 20, and 25) that exist require you to load space values into registers before you can perform workarounds for those errata. This paper describes the methodology of loading these space registers for each of these errata using the PIC16F876A microcontroller attached to the 41210 Bridge and its I2C bus. tech news

The CB2000 is Symbol's client bridge product that provides the ability to connect any Ethernet-enabled device to any Wi-Fi certified network. Key characteristics include a built-in 802.11b radio, the ability to connect up to four workstations for workgroup use, and an internal web server for management via a web browser interface. Security options include 40-bit/128-bit WEP and Kerberos. The ease of installation and management of the CB2000 provide great versatility for a variety of applications and environments. This white paper outlines several common applications of the CB2000 to illustrate how this client bridge product can be used. tech news

The Veto UNB and DPAs allow a number of protocols and data types to be transferred from one network to another using the one-way Interactive Link/Veto Data Diode (IL/Veto DD). These protocols and data types include FTP, TCP/IP, SMTP, clipboard and file. This adds a great deal of flexibility to Veto solutions. This white paper details the various transport protocols available to transfer data through the IL/Veto DD using the Veto Data Pump Applications and practical applications for this architecture. tech news