DATA TRANSACTION METHOD BETWEEN CONTROL CHIP SETS

摘要

PROBLEM TO BE SOLVED: To provide a data transaction method for conducting data transaction between plural control chips. SOLUTION: A data buffer for control chips in a control chip set has inherent size and quantity. Read/write acknowledge commands are successively asserted in accordance with a read/write command. Thereby a certain control chip can detect buffer status in another control chip. In the case of asserting a command by a control chip, data corresponding to the command should be previously prepared. Thereby a signal line for providing stand-by status, a data transaction cycle and a stop/retrial protocol can be omitted. Thus, a command or data can be continuously transmitted without requiring the stand-by, stop or retrial of the command or data and the performance of processing can be improved.