| 摘要 |
PURPOSE:To process instantaneously time series data from an external equipment at a high speed by providing a buffer memory in an input connecting device. CONSTITUTION:Writing operation to and reading operation from a first-in first- out storage area as a storage address of a buffer circuit 2 are performed asynchronously, and the write address A1 and read address A2 are each increased by one every time each operation is completed. When the writing or reading operation is carried out until the write address A1 or read address A2 attains to the final address of the buffer circuit 2, a control circuit 3 supplies a write address control signal C2 to a write address generating circuit 4 or read address control signal C3 to a read address generating circuit 5. The result is set in the starting address of the buffer circuit 2 to perform successively the writing or reading operation. |
