Non-invasive bus master back-off circuit and method for systems

Details Non-invasive bus master back-off circuit and method for systems Non-invasive bus master back-off circuit and method for systems

1998-06-02

2000-08-29

Auve, Glenn A.

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

710110, G06F 1300

Patent

active

061122726

ABSTRACT:
A non-invasive processor bus master back off enables bus mastership to be changed without interrupting execution of time critical routines of the current bus master. The current bus master recognizes when a time critical routine is being executed. Thus, if a request to back-off the bus is received while a time critical routine is being executed, the current bus master completes execution of the time critical routine prior to pausing and relinquishing the bus to the requesting bus master. Non-invasive back-off structure includes a bus; a first bus master coupled to the bus where the first bus master executes routines that transfer data over the bus; a second bus master coupled to the bus; and a non-invasive back-off circuit coupled to the first and second bus masters. The non-invasive back-off circuit generates a back-off pause enablement signal that enables transfer of control of the bus from the first bus master to the second bus master only when execution of a routine by the first bus master is not time critical.

REFERENCES:
patent: 5212795 (1993-05-01), Hendry
patent: 5278959 (1994-01-01), Corcoran et al.
patent: 5442769 (1995-08-01), Corcoran et al.
patent: 5596729 (1997-01-01), Lester et al.
patent: 5603050 (1997-02-01), Wolford et al.
patent: 5790869 (1998-08-01), Melo et al.
patent: 5884095 (1999-03-01), Wolford et al.

Affiliated with

Also associated with

Rating

Non-invasive bus master back-off circuit and method for systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Non-invasive bus master back-off circuit and method for systems , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-invasive bus master back-off circuit and method for systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1259597