| 摘要 |
<p>PURPOSE:To obtain a transmission delay time control logic circuit realizing plural different functions by changing a signal transmission delay time of a signal transmission path. CONSTITUTION:Programmable delay circuits PDL1-PDLn are connected between signal input terminal 1-n and a sequence circuit 10. It is not always required to insert the programmable delay circuits to all signal transmission path to be connected to the sequence circuit 10, but some of them can be of fixed time by which delay time cannot be changed. The delay time of the programmable delay circuit is changed in two kinds depending on the level of the control signal. Thus, in using n-set of programmable delay circuits, the combination of the arrival orders of the signals transmitted to the sequence circuit 10 is n! (factorial n) and n! kinds of circuit functions are obtained.</p> |
