| 摘要 |
PROBLEM TO BE SOLVED: To improve data transmitting efficiency at the time of continuously transferring large amounts of data to a specific board, and to prevent the occupancy of a bus due to continuous data transfer in a device where a main control board and a plurality of application boards are connected through a common serial bus. SOLUTION: Identification information for determining whether or not data are to be continuously transferred is added to a data frame, and processing for receiving continuous data is started or released from a main control board 1 to boards 2 and 3, and the identification information is monitored by the boards 2 and 3, and when a start instruction for receiving the continuous data is preliminarily received, all the data frames whose identification information shows that the data are to be continuously transferred are received, and when any start instruction is not received, all the data frames showing that the data are to be continuously transferred are ignored. The destination information of the data frames, to be transmitted to the boards, to be continuously transferred is omitted. COPYRIGHT: (C)2006,JPO&NCIPI
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