| 摘要 |
PURPOSE:To reduce the refresh requesting frequencies, by controlling the refresh after constituting a timer with an RAM and an incremental circuit and then making use of the locality and continuity of a von Neumann computer program. CONSTITUTION:A timer is constituted with an RAM 6 of a register corresponding to each refresh address number of a dynamic storage device and an incremental circuit 7. A register of a refresh address received an access is reset via the circuit 7. While the register of an address received no access is periodically clocked and decided via the circuit 7, and a refresh request is delivered from the circuit 7 to an address which reaches a fixed value. These registers are connected to a von Nenmann computer. Thus the access receiving probability is increased during an operation of a program for a row address to be refreshed. As a result, both locality and continuity of a von Nenmann program are used at their maximum. This reduces the refresh requesting frequencies and increases the processing speed of a dynamic storage device. |
