Common memory protection system in a multiprocessor configuratio

Details Common memory protection system in a multiprocessor configuratio Common memory protection system in a multiprocessor configuratio

1994-10-13

1997-05-27

Chan, Eddie P.

395481, 39542106, G06F 1216

Patent

active

056340389

ABSTRACT:
A common memory protection system in an apparatus having a multiprocessor configuration in which a plurality of CPUs are connected to a common RAM via a common bus, the system has a flag control section for outputting two semaphore-flag signals showing each semaphore-flag condition when the CPU checks two semaphore-flags by accessing the corresponding two semaphore-flag addresses that have complementary address values to each other, and a memory control section that allows the CPU to access any address in the common RAM via the common bus when receiving the semaphore-flag signals, both of which indicate that access to the common RAM is enabled, from the flag control section.

REFERENCES:
patent: 3576982 (1971-05-01), Duke
patent: 4597084 (1986-06-01), Dynneson et al.
patent: 4975870 (1990-12-01), Knicely et al.

Affiliated with

Also associated with

Rating

Common memory protection system in a multiprocessor configuratio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Common memory protection system in a multiprocessor configuratio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Common memory protection system in a multiprocessor configuratio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2335957