| 摘要 |
PROBLEM TO BE SOLVED: To achieve accurate signal transfer at high speed in bi-directional data transmission/reception using a single transmission channel. SOLUTION: To prevent delay time fluctuation of a receiver circuit due to collision of signal edges at an input Line- L of the receiver circuit, a fixed voltage value Vref- L is set a reference signal of the receiver circuit, and the data channel length 7d is determined so that time required for signal transmission from a transmitting station to a receiving station equals an integral multiple of a clock cycle. The difference of delay variations between the two stations is detected by using a variable delay circuit for clock signals and the receiver circuit and corrected by a variable delay circuit 7b for data signals. Furthermore, the delay of the variable delay circuit for clock signals is set to be within data signal confirmation time width. |
