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:
Nov. 06, 2018

Filed:

Dec. 02, 2016
Applicant:

Xilinx, Inc., San Jose, CA (US);

Inventors:

Mahesh Sankroj, Secunderabad, IN;

Jason Villarreal, Los Gatos, CA (US);

Assignee:

XILINX, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/42 (2006.01); G06F 13/364 (2006.01); G06F 13/16 (2006.01); G06F 13/40 (2006.01);
U.S. Cl.
CPC ...
G06F 13/4291 (2013.01); G06F 13/1673 (2013.01); G06F 13/364 (2013.01); G06F 13/404 (2013.01);
Abstract

A circuit arrangement for handling write and read requests between a master circuit and a slave circuit in different clock domains includes first and second write FIFO circuits, a read FIFO circuit, and a write acknowledgment circuit. The first write FIFO circuit is configured and arranged to receive and buffer write addresses of write requests received from a master circuit and addressed to a slave circuit. The second write FIFO circuit is configured and arranged to receive and buffer write data associated with the write addresses of the write requests. The read FIFO circuit is configured and arranged to receive and buffer read addresses of read requests received from the master circuit and addressed to the slave circuit. The write acknowledgment control circuit is configured and arranged to transmit an acknowledgement to a write request to the master circuit before the slave circuit issues a response to the write request.


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