| 摘要 |
PURPOSE:To remarkably reduce the hardware, by decreasing the bit width of a reference counter provided in accordance with each cell. CONSTITUTION:The hardware of a reference counter prepared in accordance with one to one to each cell is limited to have the bit width of p bits and the number of hardwares is stored in the maxium 2p-1. If it is required to store the number exceeding the maximum 2p-1, the display of maximum value is made to a counter corresponding to the said cell and stored in a counter table 29 in a counter table controlling circuit 20. |
