| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To secure an exclusive area corresponding to each application on a shared memory when a certain bus master executes simultaneously a plurality of kinds of applications in which the algorithm needs to be protected. <P>SOLUTION: When the bus master which executes the plurality of applications, accesses to a memory, it outputs an access area number which indicates that the access is to the area corresponding to each application, and an access propriety determination section determines whether access to the access destination requested by the bus master is allowed or not based on the access area number, the access destination address included in the access request and the access propriety information. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
