PATTERN GENERATION CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a pattern generation circuit capable of generating the pattern of a long pattern length which less circuit configuration in the pattern generation circuit for generating the pattern provided with many repetition parts. SOLUTION: An optional output pattern is set in a RAM 8 for holding the pattern and the output timing information of the RAM 8 for holding the pattern is set in the RAM 7 for timing generation. Then, the RAM 8 for holding the pattern outputs the set output pattern stored in an address indicated by data inputted from the RAM 7 for the timing generation to the (n)-bit data input terminal IN of an n:1 multiplex circuit 9 and the n:1 multiplex circuit 9 multiplexes bits, based on timing signals inputted from a multiplex timing generation circuit 5, turns the data inputted from the RAM 8 for holding the pattern to serial data and outputs them as pattern signals from a data output terminal OUT to a pattern output terminal 4.