| 摘要 |
PURPOSE:To supply data signals in each bit to plural output ports by supplying a data latch signal to a latch circuit selected by an address signal in accordance with the generation of a strobe signal. CONSTITUTION:A strobe signal SS and an address signal AS are supplied from an output port circuit 1 to an address decoder 2 and a data signal is supplied from the circuit 1 to each latch circuit in parallel. A data latch signal DLS is supplied from the address decoder 2 to a latch circuit 3 selected by the address signal in accordance with the generation of the strobe signal SS to make the latch circuit 3 latch a data signal generated at that time. Consequently the data signal DS from the output port circuit 1 is transferred to the output port 4 of a latch circuit 3 selected by the address signal AS. |
