The digital circuit which uses the memory in order to monitor the signal concerning the occurrence of the breakpoint condition which is stipulated beforehand

摘要

(57) Abstract As for breakpoint unit, concerning each occurrence of the condition where plural is beforehand decided the digital signal (B₁,...B _n, C₁,...C _m) the memory circuit which is monitored (30 and 50) it includes. The memory circuit includes array of memory cell (34 and 53) and (as for each cell the data which decides the value of the breakpoint condition for being the object of interest (I _i; K_1m) store it has done), as for those where among of the cells is selected responding to the various combinations of the signal bit, you read that it can. As for the data value which is accessed, it is used the circuit where it can give out the signal which is monitored (20) as the breakpoint signal which operation it stops or starts, or. With execution example of substitution, it is the object of interest and the plural memory circuits which monitor the signal bit of group which confronts the condition for differing and differs (41 and 42; 60 and 61) may have, corresponds the data value which is accessed the logic gates (43) with to be combined, to be used or the memory circuit of the 2nd step (62) to as input the breakpoint signal (K _ij; L it is possible _m) to form.