The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 14, 2017

Filed:

Jul. 25, 2013
Applicant:

Altera Corporation, San Jose, CA (US);

Inventors:

Manoj Reghunath, Austin, TX (US);

Sam Hedinger, Austin, TX (US);

Assignee:

Altera Corporation, San Jose, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/27 (2006.01); G06F 11/36 (2006.01);
U.S. Cl.
CPC ...
G06F 11/27 (2013.01); G06F 11/364 (2013.01); G06F 11/3656 (2013.01);
Abstract

An integrated circuit may be provided with system-on-chip circuitry including system-on-chip interconnects and a microprocessor unit subsystem. The subsystem may include microprocessor cores that execute instructions stored in memory. Cache may be used to cache data for the microprocessor cores. A memory coherency control unit may be used to maintain memory coherency during operation of the microprocessor unit subsystem. The memory coherency control unit may be coupled to the system-on-chip interconnects by a bus. A command translator may be interposed in the bus. The command translator may have a slave interface that communicates with the interconnects and a master interface that communicates with the memory coherency control unit. The integrated circuit may have programmable circuitry that is programmed to implement a debug master coupled to the interconnects. During debug operations, the command translator may translate commands from the debug master.


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