| 摘要 |
PURPOSE:To accumulate action-history information of versatility by adding the content of an address register after writing laterally to plural banks, for memory means divided into the plural banks. CONSTITUTION:An address register 2 retains addresses at writing and reading actions to a memory circuit 1 which has been divided into plural banks 1a-1d. A bank switch control circuit 3 can discretionarily set a writing byte width of the memory circuit 1 upon writing action, and can write into a discretionary bank. The output of the bank switch control circuit 3 is inputted into a writing control circuit 4, and on the basis of directions from the writing control circuit 4, the written data to the memory circuit 1 is switched. |
