| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent erroneous output of input/output by malfunction. <P>SOLUTION: In this input/output controller, an input/output value for processor's calculation in a relatively high-safety mode is stored in a first storage area, an input/output value for processor's calculation in a relatively low-safety mode is stored in a second storage area, and transfer to the first storage area, transfer from the first storage area, transfer to the second storage area, or transfer from the second storage area is restricted according to the mode of the safety. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
