| 摘要 |
PURPOSE:To reduce the operating power of a storage circuit and improve a high multiplexity of switches by supplying data successively to storage elements designated with a scanning signal in a channel device of an exchange. CONSTITUTION:D type FFs 10-13 are cascaded circularly to constitute a scanning signal transmitting circuit 1, and outputs (d)-(g) of these FFs are changed in accordance with the rise of a clock signal (b). Latch circuits 20-23 of a storage circuit 2 store input data (b) successively in accordance with this change to generate outputs (m)-(q). After held successively in latch circuits 30-33 of a multiplexer circuit 3 with storage function in accordance with a frame pulse (a), these outputs (m)-(g) are selected successively by a multiplexer 34 in accordance with control information (h)-(l) from a control memory 4 and are transmitted successively through a latch circuit 35. |
