| 摘要 |
PURPOSE:To form an address signal generating circuit of a RAM, which is suitable for an IC conversion, by providing two adding circuits and a comparing circuit. CONSTITUTION:The titled circuit is constituted so that a block address can be determined by comparing an output of the first adding circuit 5 by a comparing circuit 7, and adding a value determined by its result and an output value of the first adding circuit 5 by the second adding circuit 11. In this way, this circuit is suitable for an IC conversion by a simple circuit constitution. That is to say, an address signal of a RAM can be generated by such a simple circuit constitution as the addition is executed by two adding circuits 5, 11, and also, it an correspond to both data series of right-down and left-down, and at the time of the IC conversion, its practical effect is high.
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