Patent ID: 7970597

Claim:
An apparatus for emulating a circuit, the apparatus comprising: emulation resources ( 14 ) programmed to emulate the circuit, a clocking system ( 16 ), a resource interface circuit ( 18 ), a logic analyzer ( 27 ), and a debugger in signal communication with the resource interface circuit and the logic analyzer, wherein the clocking system clocks the emulation resources, wherein the emulation resources emulate behavior of the circuit by generating internal signals and output signals in response to received input signals when clocked by the clocking system, wherein the resource interface circuit monitors ones of the signals received and generated by the emulation resources, and stores first data representing behavior of the signals it monitors, and wherein the logic analyzer monitors at least one of the emulation resource input, internal or output signals, wherein the logic analyzer signals the clocking system to stop clocking the emulation resources upon detecting an event in at least one of the emulation resource input, internal or output signals it monitors, and wherein the debugger receives and processes the first data stored by the resource interface circuit after the clocking system has stopped clocking the emulation resources.