Invention Grant
- Patent Title: Command multiplier for built-in-self-test
- Patent Title (中): 内置自检命令乘数
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Application No.: US10708184Application Date: 2004-02-13
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Publication No.: US07194670B2Publication Date: 2007-03-20
- Inventor: Jonathan R. Fales , Gregory J. Fredeman , Kevin W. Gorman , Mark D. Jacunski , Toshiaki Kirihata , Alan D. Norris , Paul C. Parries , Matthew R. Wordeman
- Applicant: Jonathan R. Fales , Gregory J. Fredeman , Kevin W. Gorman , Mark D. Jacunski , Toshiaki Kirihata , Alan D. Norris , Paul C. Parries , Matthew R. Wordeman
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corp.
- Current Assignee: International Business Machines Corp.
- Current Assignee Address: US NY Armonk
- Agent Robert A. Walsh; Micheal Lestrange
- Main IPC: G01R31/28
- IPC: G01R31/28

Abstract:
Disclosed is a flexible command multiplication scheme for the built-in-self test (BIST) of a high-speed embedded memory array that segments BIST functionality into remote lower-speed executable instructions and local higher-speed executable instructions. A stand-alone BIST logic controller operates at a lower frequency and communicates with a command multiplier using a low-speed BIST instruction seed set. The command multiplier uses offset or directive registers to drive a logic unit or ALU to generate “n” sets of CAD information which are then time-multiplexed to the embedded memory at a speed “n” times faster than the BIST operating speed.
Public/Granted literature
- US20050193253A1 A Command Multiplier for Built-In-Self-Test Public/Granted day:2005-09-01
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