Circuit and method for configuring a bus bridge using parameters

Details Circuit and method for configuring a bus bridge using parameters Circuit and method for configuring a bus bridge using parameters

1998-10-21

2000-09-12

Sheikh, Ayaz R.

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

710129, 710 10, 710104, G06F 1340, G06F 1300, G06F 300

Patent

active

061191922

ABSTRACT:
A circuit and method are provided for initializing configuration registers in a bus bridge controller so that peripheral devices can acquire functionality prior to initialization by a normal system Basic Input/Output System (BIOS) routine. The initialization information is stored in a supplemental configuration Electronically Erasable Programmable Read Only Memory (EEPROM), separate from a conventional system BIOS ROM. In addition, the register configuration information is stored in a flexible format so that only certain devices are pre-configured, or that certain devices are initialized before others. The invention has particular usefulness in personal computing systems which include a Peripheral Component Interconnect (PCI) bus, an ISA bus, and a system management bus (SMB) for providing access to the EEPROM.

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