| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent erroneous wiring to a protection object module while suppressing increase of writing time. <P>SOLUTION: An erroneous writing prevention circuit has: a comparison code generation part which acquires a part of values of at least one of an address and data output to a bus and generates a comparison code by using the acquired value; a comparison part which compares an expectation value corresponding to the data to be written in a protection object module connected to the bus with the comparison code; and a writing control part which determines whether or not to permit writing to the module based on a comparison result of the comparison part. <P>COPYRIGHT: (C)2012,JPO&INPIT |
