Direct memory access engine

Details Direct memory access engine Direct memory access engine

2011-03-22

2011-03-22

Tsai, Henry W (Department: 2184)

Electrical computers and digital data processing systems: input/

Input/output data processing

Direct memory accessing

C713S400000

Reexamination Certificate

active

07912997

ABSTRACT:
A direct memory access engine is described. The direct memory access engine has a transmit channel coupled to a transmit interface, a receive channel coupled to a receive interface, an arbiter coupled to both the transmit channel and the receive channel, and a set of queues coupled to the arbiter. The set of queues has command buffers, transmit buffers, and receive buffers. A direct memory access-to-processor bus interface is coupled to the set of queues. The transmit buffers are for first separate read and write requests. The receive buffers are for second separate read and write requests which are independent of the first separate read and write requests.

REFERENCES:
patent: 6128678 (2000-10-01), Masteller
patent: 7251702 (2007-07-01), Lee et al.
patent: 7310396 (2007-12-01), Sabih
patent: 7343442 (2008-03-01), Rankin et al.
patent: 2002/0062408 (2002-05-01), Jahnke et al.
patent: 2005/0210163 (2005-09-01), Suzuki et al.
patent: 2006/0168359 (2006-07-01), Bissessur et al.
patent: 2008/0162663 (2008-07-01), Schlansker et al.
patent: 2009/0323728 (2009-12-01), Koutsoures et al.
U.S. Appl. No. 12/043,097, filed Mar. 5, 2008, Ansari, Ahmad R., et al., entitled “A Processor Block Asic Core for Embedding in an Integrated Circuit”, Xilinx, Inc. 2100 Logic Drive, San Jose, California 95124.
UG200 (v1.0) “Embedded Processor Block in Virtex-5 FPGAs”, Jan. 15, 2008, 323 pages, Xilinx, Inc. 2100 Logic Drive, San Jose, CA 95124.
UG200 (v1.1), “Embedded Processor Block in Virtex-5 FPGAs”, Mar. 31, 2008, 327 pages, Xilinx, Inc. 2100 Logic Drive, San Jose, CA 95124.

Affiliated with

Also associated with

Rating

Direct memory access engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Direct memory access engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct memory access engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2664328