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:
Feb. 08, 2022

Filed:

Dec. 12, 2018
Applicant:

Cadence Design Systems, Inc., San Jose, CA (US);

Inventors:

Yuhei Hayashi, San Jose, CA (US);

Mitchell G. Poplack, San Jose, CA (US);

Assignee:

CADENCE DESIGN SYSTEMS, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/22 (2006.01); G06F 11/273 (2006.01); G06F 30/331 (2020.01); G06F 9/455 (2018.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
G06F 11/221 (2013.01); G06F 9/455 (2013.01); G06F 11/2733 (2013.01); G06F 30/331 (2020.01); H04L 67/08 (2013.01);
Abstract

Using a framing protocol, an application specific integrated circuit (ASIC) in an emulation system may transmit a start-of-packet molecule to a serializer-deserializer (SerDes) interface of a switching ASIC in a gap cycle leading up to an emulation cycle such that the switching ASIC may start routing mission data through the SerDes interface during the emulation cycle. The ASIC may transmit an end-of-packet molecule at a first gap cycle to the SerDes interface of the switching ASIC such that the switching ASIC may stop routing data through the SerDes interface during the gap cycles. The start-of-packet molecule may include a start-of-packet word, a status word, cyclic redundancy check word, and an idle word. The end-of-packet molecule may include an end-of-packet word, a status word, a cyclic redundancy check word, and an idle word.


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