| 摘要 |
PROBLEM TO BE SOLVED: To perform accurate read-out processing at high speed.SOLUTION: Normal data inputted through a network are stored in one of two storage areas to which the same address is assigned in accordance with a rise of a normal CLK, and inverted data obtained by inverting the normal data are stored in the other storage area in accordance with a rise of an inverted CLK. The normal CLK is read in accordance with the rise of the normal CLK, and the inverted data are read in accordance with the rise of inverted CLK. Checking of respective parity errors of the read normal data and inverted data is executed in accordance with rises of the next CLKs of the CLKs each execute reading. Then, data in which no error is detected are output as output data based on a check result of each parity error. |
