| 摘要 |
A restriction is given to the calculation function for image processing achieved by the hard-wired system and the memory access control of a buffer memory, and a range of the restriction is made variable by a program control and others. Data is inputted to the buffer memory from the outside with a restriction of“in units of memory line”, and the number of memory lines and positions of the same to which data is inputted can be programmable by the control circuit. The arithmetic circuit is subjected to the restriction of performing the calculation in units of data of one or plural memory lines supplied from the buffer memory, and a calculation processing content in units of calculation processing for the units of data can be programmably assigned by the control circuit.
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