Method and apparatus for interfacing a device compliant to a fir

Details Method and apparatus for interfacing a device compliant to a fir Method and apparatus for interfacing a device compliant to a fir

1995-12-28

1998-05-12

Ray, Gopal C.

Multiplex communications

Wide area network

Packet switching

395309, 395500, 370402, G06F 1300, G06F 1310

Patent

active

057519757

ABSTRACT:
A method and apparatus for interfacing a device which is compliant to a first bus protocol to a second bus having a second protocol and for providing virtual functions through an intelligent bridge. The interface apparatus is coupled to the first bus and the second bus. The interface device detects a configuration cycle on the second bus and translates the configuration cycle into a corresponding cycle in a format understandable by the first bus. The bus cycle is executed on the first bus. A local processor is interrupted by the interface apparatus. A verification and correction program is executed by the local processor to restore configuration header values if the executed bus cycle violated the protocol of the second bus. The interface apparatus insures that requests for access to the first bus are blocked during the execution of the verification and correction program.

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