| 摘要 |
<p>PURPOSE:To obtain optional frequency distribution at high speed with simple circuit constitution by providing a count up register in which a content stored in a lookup table is set to be an address input. CONSTITUTION:The lookup table 101 sets inputted data to be the address input, and makes every 32 words for storage to be the same values and they are increased by one, such as the '0' is assigned to 0-31 words, '1' for 32-36 words, and '2' to 64-95 words. The output of the lookup table 101 is data giving the address of the count up register 102, which counts the frequency of inputted data and the histogram of eight degrees in inputted data whose data width is eight bits can be obtained. Thus, the histogram can optionally be generated at high speed, and circuit constitution can easily be realized.</p> |
