Electrical computers and digital processing systems: support – Synchronization of plural processors
Reexamination Certificate
2006-10-31
2006-10-31
Nguyen, Tanh Q. (Department: 2182)
Electrical computers and digital processing systems: support
Synchronization of plural processors
C709S248000, C709S249000, C710S015000, C710S017000, C710S018000, C710S019000, C710S020000
Reexamination Certificate
active
07131020
ABSTRACT:
A system for synchronizing configuration information in a plurality of data processing devices using a common system interconnect bus. The present invention provides a method and apparatus for enforcing automatic updates to the configuration registers in various agents in the data processing system. A node controller is operably connected to a system interconnect bus and a switch. A plurality of interface agents are connected to the switch, with each of the interface agents comprising a configuration space register, a configuration space shadow register and a control and status register (CSR). A token ring connected to the node controller is operable to transmit data from the node controller to a plurality of interface agents connected to the token ring, thereby providing a system for updating the various configuration registers in each of the agents.
REFERENCES:
patent: 5452424 (1995-09-01), Goeppel
patent: 2003/0043836 (2003-03-01), Rashid et al.
Moll Laurent
Rowlands Joseph B.
Broadcom Corporation
Garlick Bruce
Garlick & Harrison & Markison
Nguyen Tanh Q.
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