公开(公告)号：US09588176B1

公开(公告)日：2017-03-07

申请号：US14610341

申请日：2015-01-30

Applicant: Altera Corporation

Inventor： Michael Hutton ,  Sean Atsatt ,  James Ball ,  Dana How ,  Jeffrey Chromczak ,  Eng Ling Ho

IPC: G01R31/28 ,  G01R31/3177

CPC classification number: G01R31/3177 ,  G11C29/32

Abstract: An integrated circuit may include user storage circuits and scan storage circuits. The scan storage circuits may store data from the user storage circuits and provide the data to a user interface during a read-back operation. The user storage circuits may store data from the scan storage circuits, which the scan storage circuits may have received from the user interface during a write-back operation. The scan storage circuits may be arranged in a scan chain and controlled by a local control circuit. The integrated circuit may include multiple local control circuits that each control a sector of the integrated circuit. The local control circuits may communicate with a global control circuit over a communication network, and the global control circuit may communicate with the user interface.

Abstract translation: 集成电路可以包括用户存储电路和扫描存储电路。 扫描存储电路可以存储来自用户存储电路的数据，并且在回读操作期间将数据提供给用户界面。 用户存储电路可以在回写操作期间存储来自扫描存储电路的扫描存储电路的数据，扫描存储电路可能从用户界面接收。 扫描存储电路可以布置在扫描链中并由本地控制电路控制。 集成电路可以包括多个本地控制电路，每个本地控制电路控制集成电路的扇区。 本地控制电路可以通过通信网络与全局控制电路进行通信，并且全局控制电路可以与用户界面进行通信。