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:
Jun. 25, 2024

Filed:

Dec. 09, 2022
Applicant:

Stmicroelectronics International N.v., Geneva, CH;

Inventors:

Venkata Narayanan Srinivasan, Greater Noida, IN;

Balwinder Singh Soni, Faridabad, IN;

Avneep Kumar Goyal, Greater Noida, IN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G11C 7/10 (2006.01); G11C 7/22 (2006.01); G11C 29/14 (2006.01); G11C 29/36 (2006.01); G11C 29/38 (2006.01); G11C 29/12 (2006.01); H03K 19/20 (2006.01);
U.S. Cl.
CPC ...
G11C 29/38 (2013.01); G11C 7/1084 (2013.01); G11C 7/22 (2013.01); G11C 29/14 (2013.01); G11C 29/36 (2013.01); G11C 2029/1206 (2013.01); G11C 2029/3602 (2013.01); H03K 19/20 (2013.01);
Abstract

Disclosed herein is a method of operating a system in a test mode. When the test mode is an ATPG test mode, the method includes beginning stuck-at testing by setting a scan control signal to a logic one, setting a transition mode signal to a logic 0, and initializing FIFO buffer for ATPG test mode. The FIFO buffer is initialized for ATPG test mode by setting a scan reset signal to a logic 0 to place a write data register and a read data register associated with the FIFO buffer into a reset state, enabling latches of the FIFO buffer using an external enable signal, removing the external enable signal to cause the latches to latch, and setting the scan reset signal to a logic 1 to release the write data register and the read data register from the reset state, while not clocking the write data register.


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