Method and apparatus to reprogram flash ROM without proxy code

Details Method and apparatus to reprogram flash ROM without proxy code Method and apparatus to reprogram flash ROM without proxy code

1997-11-03

2000-03-07

Shin, Christopher B.

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral configuration

710 2, 710102, 710104, 713 2, G06F 1300

Patent

active

060353465

ABSTRACT:
By allowing a host processor to control an intelligent Peripheral Component Interface (PCI) device's reset logic, the PCI device's programmable read only memory (also known as PROM, EEPROM, or FLASH EEPROM) can be reprogrammed without storing any reprogramming instructions (also known as PROXY code) in the PROM itself. During reprogramming operations the host processor commands the PCI device into a reset-and-hold mode. During this time the host processor downloads reprogramming instructions and replacement code into the PCI's random access memory. When released from reset, the PCI device executes the reprogramming code downloaded by the host processor.

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