Patent ID: 9235460
Filing Date: 2016-01-12
CPC Classification: G01R,G06F,G11C

Claim Text:
1. An integrated circuit device comprising: control logic operable to send a signal onto a signal tree included on the integrated circuit device, the signal tree comprising branches and leaves, wherein the branches and leaves include columns and rows of circuit lines configured to carry signals from a signal source to signal endpoints, wherein each leaf of the signal tree comprises a signal endpoint; user logic operable to implement a user design on the integrated circuit device; and fault detection circuitry on the integrated circuit device operable to monitor, using sensors, a plurality of signal values at each of the leaves on the signal tree such that the fault detection circuitry can detect faults at any point along the branches of the signal tree, wherein the fault detection circuitry is operable to generate a fault detect signal having a first value in response to determining that the first signal value of the plurality of signal values deviates from an expected signal value, and wherein the control logic implements a fault handling procedure upon receiving the fault detect signal having the first value.