| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase security strength by a simple means, and to lighten a processing load of a main control unit. <P>SOLUTION: A game machine 1 includes: the main control unit 110; a peripheral unit 300: and an intermediate control unit 180. The main control unit 110 includes: a main ROM 110b for storing a control command and initial setting information; a main CPU 110a for outputting the control command; and a transmission unit 500 for generating an error check value of the control command for transmitting to the intermediate control unit 180. The main CPU 110a selects a specific generation circuit from a plurality of generation circuits undertaking a generation circuit 521 included in the transmission unit 500 as one of pieces of initial setting information in boot processing. The transmission unit 500 generates the error check value of the control command generated in the past with the specific generation circuit as the generation circuit 521 for adding to the control command to be transmitted currently. The intermediate control unit 180 stores the error check value of the control command generated in the past for checking validation of the received error check value. <P>COPYRIGHT: (C)2012,JPO&INPIT |
