Method of synchronizing operation frequencies of CPU and...

Electrical computers and digital processing systems: support – Computer power control

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C713S300000

Reexamination Certificate

active

06895517

ABSTRACT:
A control method of synchronizing operation frequencies of a CPU and a system RAM in a power management process. A power management process is initialized by a system interrupt generated by a power management event. After sending the interrupt control signal output from the chipset to the CPU, the CPU enters a system management mode to execute an interrupt service routine. The interrupt service routine irrelevant to the system RAM configuration is executed first. The shadow RAM control register of the chipset is programmed using the BIOS program to enable the BIOS ROM. A distant jump command is programmed to jump into a predetermined memory address of the BIOS ROM storing a system RAM frequency modulation program to execute the system RAM frequency program. Therefore, the operation frequencies of the CPU and the system RAM are consistent during the power management process to eliminate the instability of system caused thereby.

REFERENCES:
patent: 6065121 (2000-05-01), Hobson et al.
patent: 6266776 (2001-07-01), Sakai
patent: 6725384 (2004-04-01), Lambino et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of synchronizing operation frequencies of CPU and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of synchronizing operation frequencies of CPU and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of synchronizing operation frequencies of CPU and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3417380

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.