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:
Sep. 24, 2019

Filed:

Jun. 19, 2018
Applicant:

Faraday Technology Corporation, Hsinchu, TW;

Inventors:

Chang-Chin Chung, Hsinchu, TW;

Shen-Chang Wang, Hsinchu, TW;

Assignee:

Faraday Technology Corp., Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 5/10 (2006.01); G11C 8/18 (2006.01); G11C 7/10 (2006.01);
U.S. Cl.
CPC ...
G06F 5/10 (2013.01); G11C 7/1006 (2013.01); G11C 8/18 (2013.01); G06F 2205/106 (2013.01);
Abstract

A FIFO circuit for a DDR memory system includes a pointer generator and a FIFO circuit. The FIFO circuit includes a pointer generator and a FIFO buffer. The pointer generator receives a first reset signal and a delay select signal from the memory controller. After the first reset signal is de-asserted, the pointer generator generates a write pointer according to a first reference clock and the pointer generator generates a read pointer according to a second reference clock. An input data is stored into the FIFO buffer according to the first reference clock and the write pointer. An output data is outputted from the FIFO buffer according to the second reference clock and the read pointer.


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