System on a chip having a system bus, an external bus, and a...

Details System on a chip having a system bus, an external bus, and a... System on a chip having a system bus, an external bus, and a...

2005-12-13

2005-12-13

Rinehart, Mark H. (Department: 2111)

Electrical computers and digital data processing systems: input/

Access arbitrating

C710S309000, C710S306000, C710S113000, C710S114000, C710S115000, C710S116000, C710S117000, C710S118000

Reexamination Certificate

active

06976108

ABSTRACT:
A system on a chip has functional blocks accommodated by at least one system bus, and an external bus for accommodating communication with external blocks. A single multi-jurisdictional bus arbiter has programmable rankings for assigning priorities to requests from blocks that are masters for either one of the both buses. Software and methods are also provided for assigning the priorities. The requests are analyzed with respect to which of the buses they require, and then priorities are assigned to maximize bus utilization, with increased speed for a system on a chip. In addition, a multi-jurisdictional multi-channel direct memory access block can be a master block for the system bus or the external bus.

REFERENCES:
patent: 5239651 (1993-08-01), Sodos
patent: 5475850 (1995-12-01), Kahn
patent: 5500945 (1996-03-01), Maeda et al.
patent: 5506970 (1996-04-01), Wozniak
patent: 5517650 (1996-05-01), Bland et al.
patent: 5524215 (1996-06-01), Gay
patent: 5526495 (1996-06-01), Shibata et al.
patent: 5526496 (1996-06-01), Alnuweiri
patent: 5553268 (1996-09-01), Willenz et al.
patent: 5555383 (1996-09-01), Elazar et al.
patent: 5559968 (1996-09-01), Stancil et al.
patent: 5583999 (1996-12-01), Sato et al.
patent: 5590290 (1996-12-01), Kondo et al.
patent: 5596749 (1997-01-01), Cantrell et al.
patent: 5604874 (1997-02-01), Kondo et al.
patent: 5619661 (1997-04-01), Crews et al.
patent: 5619726 (1997-04-01), Seconi et al.
patent: 5619727 (1997-04-01), Chen et al.
patent: 5625779 (1997-04-01), Solomon et al.
patent: 5632020 (1997-05-01), Gephardt et al.
patent: 5640518 (1997-06-01), Muhich et al.
patent: 5652895 (1997-07-01), Poisner
patent: 5657458 (1997-08-01), Kondo et al.
patent: 5664142 (1997-09-01), Boldt et al.
patent: 5689657 (1997-11-01), Desor et al.
patent: 5708783 (1998-01-01), Yazdy
patent: 5717154 (1998-02-01), Gulick
patent: 5727171 (1998-03-01), Iachetta, Jr.
patent: 5734845 (1998-03-01), Sugahara
patent: 5734846 (1998-03-01), Robertson
patent: 5761452 (1998-06-01), Hooks et al.
patent: 5774679 (1998-06-01), Kondo et al.
patent: 5778200 (1998-07-01), Gulick
patent: 5790568 (1998-08-01), Luong et al.
patent: 5790811 (1998-08-01), Hewitt
patent: 5794070 (1998-08-01), Rabe et al.
patent: 5796968 (1998-08-01), Takamiya
patent: 5802330 (1998-09-01), Dutton
patent: 5805840 (1998-09-01), Dutton
patent: 5815676 (1998-09-01), Yazdy
patent: 5822549 (1998-10-01), LaBerge
patent: 5825878 (1998-10-01), Takahashi et al.
patent: 5828856 (1998-10-01), Bowes et al.
patent: 5845097 (1998-12-01), Kang et al.
patent: 5845131 (1998-12-01), Kim
patent: 5850529 (1998-12-01), Nakamura
patent: 5857081 (1999-01-01), Furuta
patent: 5862355 (1999-01-01), Logsdon
patent: 5867670 (1999-02-01), Kim et al.
patent: 5870570 (1999-02-01), Chambers et al.
patent: 5875309 (1999-02-01), Itkowsky et al.
patent: 5878279 (1999-03-01), Athenes
patent: 5884051 (1999-03-01), Schaffer et al.
patent: 5894586 (1999-04-01), Marks et al.
patent: 5901295 (1999-05-01), Yazdy
patent: 5925118 (1999-07-01), Revilla et al.
patent: 5933613 (1999-08-01), Tanaka et al.
patent: 5933616 (1999-08-01), Pecone et al.
patent: 5951667 (1999-09-01), Abramson
patent: 5956493 (1999-09-01), Hewitt et al.
patent: 5968154 (1999-10-01), Cho
patent: 5970234 (1999-10-01), Jin
patent: 5978879 (1999-11-01), Harumoto et al.
patent: 5983302 (1999-11-01), Christiansen et al.
patent: 6003116 (1999-12-01), Morita et al.
patent: 6021455 (2000-02-01), Kondo et al.
patent: 6026464 (2000-02-01), Cohen
patent: 6046952 (2000-04-01), Novak et al.
patent: 6047345 (2000-04-01), Kondo et al.
patent: 6070205 (2000-05-01), Kato et al.
patent: 6070212 (2000-05-01), Yasuda et al.
patent: 6081863 (2000-06-01), Kelley et al.
patent: 6098133 (2000-08-01), Summers et al.
patent: 6108738 (2000-08-01), Chambers et al.
patent: 6163826 (2000-12-01), Khan et al.
patent: 6195723 (2001-02-01), Neal et al.
patent: 6260093 (2001-07-01), Gehman et al.
patent: 6438635 (2002-08-01), Date et al.
patent: 6601126 (2003-07-01), Zaidi et al.
patent: 6738845 (2004-05-01), Hadwiger et al.
patent: 2001/0032301 (2001-10-01), Morita et al.
patent: 2002/0038401 (2002-03-01), Zaidi et al.
patent: 4307139 (1994-09-01), None
patent: 479702 (1992-04-01), None
patent: 0654743 (1995-05-01), None
patent: 0654743 (1995-05-01), None
patent: 0658852 (1995-06-01), None
patent: 0658852 (1995-06-01), None
patent: 0658852 (1998-03-01), None
patent: WO 99/28893 (1999-10-01), None
“DMA”, Webopedia.com, Nov. 11, 2003.
Garcia, M.J., et al., “Single Chip PCI Bridge and Memory Controller for PowerPC Microprocessors,” Oct. 10-12, 1994, IEEE, Computer Design: VLSI in Computers and Processors, ICCD Proceedings, p. 409-412.
Yang, Q., et al., “Desgin and Analysis of Multiple-Bus Arbiters with Different Priority Schemes,” Mar. 7-9, 1990, IEEE, Databases, Parallel Archictectures and Their Applications, International Conference, p. 238-247.

Affiliated with

Also associated with

Rating

System on a chip having a system bus, an external bus, and a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System on a chip having a system bus, an external bus, and a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System on a chip having a system bus, an external bus, and a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3511394