| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a data processor that enables safe access control using a virtual address space without largely changing processing content of an OS. <P>SOLUTION: In a data processor (1, 2 and 3), when a circuit module (11, 31 and 41) accessed with a physical address and executing access control with a virtual address starts to operate according to a condition set by a central processing unit through a memory management part (16, 36 and 46) for performing processing for address conversion from a virtual address to a physical address, processing for changing association between a virtual address space and a physical address space at that time by the central processing unit is stopped. <P>COPYRIGHT: (C)2012,JPO&INPIT |
