| 摘要 |
PROBLEM TO BE SOLVED: To promote the security of a processing system by suppressing an access to an important resource 40 or making it difficult. SOLUTION: A method for controlling an access to a system resource 40 in a processing system 10 including a processing engine 20, the system resource 40 and a bus 30 is provided. The method includes a step for verifying an access from the engine 20 to the resource 40 through the bus 30 in a 1st mode for programming reprogrammable logic 36 arranged between the bus 30 and the resource 40 and a step for verifying at least a restricted access to the resource 40 through the bus 30 in a 2nd mode for programming the reprogrammable logic 36. Since the generation of an accident or premeditated alteration in an important resource can be prevented or made more difficult, overall system security and maintenance can be promoted. |
