| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent regularity of numeric values read out when the numeric values are regularly read out from a random number storage area 11. <P>SOLUTION: Every time a numeric value in the random number storage area 11 is updated from a maximum random number value Nmax to zero, an initial count value of a down counter 32, that is, a numeric value stored in a time constant register 33, is changed to change a random number update period which is the update period of the numeric value in the random number storage area 11. <P>COPYRIGHT: (C)2004,JPO |
