| 摘要 |
<p>PURPOSE:To prevent the load accompanied with connection between computers from being applied to operation processors of computers by providing a transmission controller which is operated asynchronously with the operation processor independently for the purpose of data exchange between computers. CONSTITUTION:If data contents in a transmission data storage device 112 are changed as the result of the processing in a computer 1, an operation processor 121 accesses a transmission controller 113 through a bus controller 130 and writes the instruction of data transmission from a designated address of the storage device 112. In accordance with this write, data is written successively in a data transmission device 111 and is transmitted. Since a signal line group 1A for data transmission control is separated completely from a signal line group 1B for operation processing control, the data transmission processing at this time is performed asynchronously with the operation of the operation processor 121 and completely independently of and in parallel with this operation and has no influences upon the load of the operation processor 121 at all.</p> |
