| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to perform writing and reading concurrently without any conflict between a read and a write address by performing next writing in the same direction as a read direction. SOLUTION: A write address generation part 5 controls the writing of data in matrix format to a 2-port memory 1. A read address generation part 6 controls reading. In the timing of the reading of data, written in a row direction, in a column direction, the write address generation part 5 outputs a read timing signal. Then after reading is started and writing is completed in the row direction, writing in the column direction is performed next. After the writing in the column direction, writing in the row direction is carried out next. |
