| 摘要 |
A data communication system includes a first and a second information processing units. The second information processing unit transmits transmission requests to the second information processing unit and determines if there is any reception data from the second information processing unit at time intervals in which the value of a timer becomes zero. When such reception data does not exist, the timer is set to "A". When the reception data exists, the second information processing unit executes a data reception process and the timer is set to "B", which is smaller than "A". In addition, the second information processing unit determines the existence of transmission data to be transmitted to the second information processing unit. When such transmission data does not exist, the timer is set to "A". On the other hand, when such transmission data exists, the second information processing unit transmits the data to the second information processing unit and then sets the value of the timer to "B".
|
