| 摘要 |
<P>PROBLEM TO BE SOLVED: To shorten time required for the analysis of a failure by suppressing a control circuit for tracing an internal signal to only a necessary constitution to suppress a change in the operation of a logic integrated circuit and continuously tracking the internal signal in real time. <P>SOLUTION: A memory module 24 and a trigger control circuit having large scales are provided at the outside instead of making a monitoring circuit incorporated into a target FPGA 42 have a small scale, and the memory module 24 and the trigger control circuit are connected by a high speed transmission line. As a result, the circuit for the monitoring can be easily inserted even after generation of a failure. As for monitoring pins from the target FPGA 42, internal signals having more than the number of pins can be monitored at high speeds by at least a high speed monitor circuit. <P>COPYRIGHT: (C)2003,JPO |
