Method and apparatus for controlling AC power during scan...

Details Method and apparatus for controlling AC power during scan... Method and apparatus for controlling AC power during scan...

2007-04-10

2007-04-10

Decady, Albert (Department: 2138)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital logic testing

C714S030000, C326S016000, C365S154000, C327S202000

Reexamination Certificate

active

11000435

ABSTRACT:
A method and apparatus are provided for implementing AC power dissipation control during scan operations in scannable latch designs. A scannable latch has a functional data output and a scan data output. A switching control is provided with the functional data output. The switching control is driven to prevent switching of the functional data output during at least part of the scan operations. Then the switching control is disabled enabling switching of the functional data output during functional data operations.

REFERENCES:
patent: 5719876 (1998-02-01), Warren
patent: 5838693 (1998-11-01), Morley
patent: 5907562 (1999-05-01), Wrape et al.
patent: 6853212 (2005-02-01), Chandar et al.

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