Apparatus and method of asynchronous FIFO control

Details Apparatus and method of asynchronous FIFO control Apparatus and method of asynchronous FIFO control

2005-01-18

2005-01-18

Fleming, Fritz (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output data buffering

C710S053000, C710S056000, C710S057000, C710S018000, C710S019000, C710S029000, C341S097000, C341S098000, C377S034000

Reexamination Certificate

active

06845414

ABSTRACT:
An apparatus and method for controlling an asynchronous First-In-First-Out (FIFO) memory. The asynchronous FIFO has separate, free running read and write clocks. A number of n-bit circular Gray code counters are used to handshake the operation between read and write parts of the FIFO, wherein n is any integer more than one. Additional binary counters are used to accumulate the read and write overflows for the circular Gray code counters. When any circular Gray code counter is overflow, the read or write count is transferred to the respective binary counter for recording the FIFO accesses.

REFERENCES:
patent: 5084841 (1992-01-01), Williams et al.
patent: 5426756 (1995-06-01), Shyi et al.
patent: 5790891 (1998-08-01), Solt et al.
patent: 6337893 (2002-01-01), Pontius
patent: 6434642 (2002-08-01), Camilleri et al.
patent: 6553448 (2003-04-01), Mannion
patent: 6703950 (2004-03-01), Yi
patent: 6718449 (2004-04-01), Phi

Affiliated with

Also associated with

Rating

Apparatus and method of asynchronous FIFO control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method of asynchronous FIFO control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method of asynchronous FIFO control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3375052