Method and system for controlling forwarding or terminating...

Details Method and system for controlling forwarding or terminating... Method and system for controlling forwarding or terminating...

2007-09-25

2007-09-25

Myers, Paul R. (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus interface architecture

C710S311000, C710S312000, C710S305000, C710S306000, C711S146000, C370S230000

Reexamination Certificate

active

11064570

ABSTRACT:
A bus bridge for coupling between a first bus and a second bus includes: a number of data buffers for a particular request type; a counter for monitoring a number of requests of the particular type received at the bus bridge from the first bus for access to the second bus; and override logic. Each request of the particular type requires one data buffer of the number of data buffers for the particular request type. The override logic determines when the monitored number of requests of the particular type exceeds the number of data buffers for the particular request type at the bus bridge, and responsive thereto, initiates a request termination signal at the bus bridge to terminate a received request of the particular type. When request coherency is maintained employing snooping, the request termination signal is a retry snoop response signal output from the bus bridge.

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