Input-output control circuit for FIFO memory

摘要

In transmitting data between a plurality of sequentially connected FIFO type memory elements by controlling a binary coded signal a circuit element is provided in a manner to correspond to each memory element, so as to indicate a data storage state. A circuit element comprises flip-flop constructed of two NOR circuits, the input of each NOR circuit being connected to an input control line or an output control line, and inverters each of which is connected to the output of the NOR circuit. The provision of such circuit element permits an automatic data transmission control according to a data storage state in a specified memory element and a data storage state in the next stage memory element.