| 摘要 |
<p>PURPOSE:To attain the fine control of a data processor at a high speed by transferring the information via a means which secures a DMA action via a part of the data to be processed and processing data via plural 1-chip microcomputers based on the transferred information. CONSTITUTION:A data processor 11 consists of the 1-chip microcomputers 121 - 123, and each of these microcomputers 121 - 123 contains a controller DMAC which can perform the transfer of data between an input/output device and a storage device with no intervention of a CPU. The data IN to be processed includes the engine information and an output OUT includes the ignition information, the fuel jet information, etc., for example. The contents of the engine information include 'A function + B function + C function', for example. Then the microcomputer 121 processes the A function, the microcomputer 122 performs the B function with the data SIN1, and the microcomputer 123 performs the C function with the data SIN2 respectively. As a result, the necessary information can be transmitted and received in common with high efficiency among plural microcomputers and within its own microcomputer. Then the fine control is attained at a high speed with a data processor.</p> |
