| 摘要 |
PURPOSE:To realize four kinds of constitution for the time switch by connecting four channel memories and two holding memories organically by using eight selectors. CONSTITUTION:Selectors SEL1 and SEL5-SEL8 make '0'-side input selections and a selector SEL2 makes a 1-side input selection. In such a case, selectors SEL3 and SEL4 and channel memories SPM2 and SPM4 are not used. Then the selectors SEL1, SEL3, SEL7, and SEL8 make '0'-side input selections and the selector SEL2 makes a 1-side input selection. The selectors SEL5 and SEL6 select '0'-side inputs and 1 side inputs alternately. The selectors SEL2, SEL4, and SEL8 make '0'-side input selections and the selectors SEL2, SEL3, and SEL7 make '1'-side input selections. Consequently, the constitution of the time is altered flexibly. |
