| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase security strength by a simple means, and to alleviate a processing load of a main control unit. <P>SOLUTION: A game machine 1 includes a subsequent stage control part 180 following a peripheral control part 300. The principal control part 110 includes an inspection value generation part 500 for converting a bit string of an error inspection value by a plurality of conversion systems, and a transmission part 550 for transmitting a command to the subsequent stage control part 180 via the peripheral control part 300. The inspection value generation part 500 is provided between a main CPU 110a and the transmission part 550, and converts a bit string of error inspection values of commands generated in the past for adding to a command to be transmitted currently. Also, the conversion system of the bit string is changed based on a transmitted control command. Also, an I/O control system in the inspection value generation part 500 differs from that outside the same. The subsequent stage control part 180 generates an error inspection value for verification, inspects the validation of the received command, and allows the peripheral control part to perform processing according to an inspected result. <P>COPYRIGHT: (C)2013,JPO&INPIT |
