Built-in self-test system for vlsi circuit chips

Details Built-in self-test system for vlsi circuit chips Built-in self-test system for vlsi circuit chips

G - Physics

01

R

356/117

G01R 31/26 (2006.01) G06F 11/27 (2006.01)

Patent

CA 1244965

IMPROVED BUILT-IN SELF-TEST SYSTEM FOR VLSI CIRCUIT CHIPS ABSTRACT OF THE DISCLOSURE An improved built-in self-test system fabricated on an LSI circuit chip for performing dynamic tests of main logic function operation. The built-in self-test system includes a control register comprising a series of static flip-flops connected for serial test data transfer and for producing test system control signals. An input shift register connected for serial test data transfer with the control register and for parallel test data transfer with the main logic function is formed by a series arrangement of static flip-flops. An output register connected for serial test data transfer with the input register, and for parallel test data transfer with the main logic function, is formed by a series arrangement of static flip-flops. A test clock enable signal is latched by a test clock enable latch, and gated with a system clock signal to produce input and output register clock signals. A test strobe signal is latched by a test strobe latch and strobed by a flip- flop for use as a control register enable signal. The latched test strobe signal and the latched test clock enable signal are gated with the system clock signal for use as a control register clock signal. A test data output multiplexer decodes a test data select signal produced by the control register and supplies test data represented thereby to a test data output pin.

522584

Affiliated with

Also associated with

Rating

Built-in self-test system for vlsi circuit chips does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Built-in self-test system for vlsi circuit chips, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Built-in self-test system for vlsi circuit chips will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1245425