| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which can cancel bottleneck in communication and, as a result, allows a CPU to efficiently operate.SOLUTION: A game machine includes: a main board communication LSI 610 which receives a command at first communication speed (19200 bps) and transmits communication data at second communication speed (115200 bps); and a sub board communication LSI 710 which receives the communication data and transmits it to a sub CPU 701. The main board communication LSI 610 calculates a first reception waiting time for detecting the command every 1 byte on the basis of the first communication speed and receives a command while detecting it on the basis of the first reception waiting time (2.5 msec) every 1 byte. The sub board communication LSI 710 calculates a second reception waiting time for detecting the communication data every 1 byte on the basis of the second communication speed and receives the communication data while detecting it every 1 byte on the basis of the second reception waiting time (0.4 msec). |
