Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Restricting the damaging effects of software faults on test and configuration circuitry










Image Number 6 for United States Patent #6578166.

A system that restricts the damaging effects of software faults that interact with test and configuration circuitry. This test and configuration circuitry includes a scan chain in the form of a serial linkage between memory elements within a circuit, thereby allowing a test input to be serially shifted into the memory elements. The system operates by receiving a test disable signal at the circuit. In response to the test disable signal, the system moves the circuit into a test disable mode, which limits any damaging effects to the circuit caused by shifting the test input into the memory elements in the scan chain. Next, the system shifts the test input into the memory elements in the scan chain. T he system also determines whether the test input will cause damage to the circuit after the test input is completely shifted into the scan chain. If so, the system holds the circuit in the test disable mode so that the test input cannot damage the circuit. If not, the system moves the circuit out of test disable mode, and runs the circuit for at least one clock cycle in order to test the circuit.








 
 
  Recently Added Patents
Method and apparatus for detection of LVDT core fallout condition
Sparse network almanac
Image sorting device, method, program, and integrated circuit and storage medium storing said program
Architecture for accelerated computer processing
Tiger paw stationary tab
System and method for multi-threaded OFDM channel equalizer
Delivery of captions, content advisory and other data through digital interface
  Randomly Featured Patents
Method for forming a semiconductor connection with a top surface having an enlarged recess
Body composition meter
Driver safety notification sign
Fluid dispenser apparatus
Single-lobe bag for infusion products
Imprint method
User positioning
Pressure compensating valves
Internal oxidized Ag-Sn system alloy contact materials
Display system