SIGNAL CONTROL CIRCUIT, INFORMATION PROCESSING DEVICE AND DUTY CALCULATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a signal control circuit which facilitates segmentation of a factor in data abnormality, an information processing device and a duty calculation method.SOLUTION: A rise-side phase determination circuit 11 and a fall-side phase determination circuit 12 in a memory interface circuit 1 calculate a first delay amount to be added to an input signal for adjusting timing of rise of the input signal and rise or fall of a reference signal and a second delay amount to be added to the input signal for adjusting timing of fall of the input signal and fall or rise of the reference signal. A duty calculation part 14 calculates a duty of the input signal on the basis of a difference between the first delay amount and the second delay amount.