Patent ID: 6931572

Claim:
An electronic monitoring circuit provided with an integrated circuit hardware product for assisting a debugger system in debugging an electronic circuit implemented within the integrated circuit hardware product, said electronic monitoring circuit being created for use with the electronic circuit and being coupled to the electronic circuit within the integrated circuit hardware product, said electronic monitoring circuit comprising: within the integrated circuit hardware product: a trigger processing unit comprising comparison circuitry for identifying trigger events and issuing a trigger action based on one or more of the identified trigger events; design patching circuitry coupled to the trigger processing unit, the design patching circuitry comprising storage circuitry for storing patched values, the design patching circuitry further comprising a multiplexer, the multiplexer having a first input coupled to the storage circuitry and a second input coupled to a patchable signal line within the electronic circuit, the multiplexer having an output coupled to a register, the register having a register output, the register output to provide the patched values if the first input is enabled, the register output to provide the unpatched values if the second input is enabled; a configuration register to store configuration information for use in configuring the trigger processing unit; and, a communication controller coupled to the configuration register to provide external access to the configuration register by the debugger system.