Multifunction peripheral capable of executing double-sided reading process, method of controlling same, and storage medium

A method of controlling a multifunction peripheral that is provided with a reading unit configured to read both sides of a document sheet and an image processing unit configured to perform image processing on data acquired via an image bus, the method comprising:

• controlling an image transfer clock for transferring image data of the original from the reading unit to the image processing unit via the image bus;
• setting, in a case where transfer of image data of one side of the document sheet is singly executed, a frequency of the image transfer clock to a predetermined frequency;
• and
• switching, in a case where transfer of image data of the other side of the document sheet, which is executed in succession to the transfer of image data of one side of the document sheet, is to be executed in parallel with the image processing, the frequency of the image transfer clock from the predetermined frequency to a frequency lower than the predetermined frequency.

A non-transitory computer-readable storage medium storing a computer-executable program for executing a method of controlling a multifunction peripheral that is provided with a reading unit configured to read both sides of a document sheet and an image processing unit configured to perform image processing on data acquired via an image bus,

• wherein the method comprises:
• controlling an image transfer clock for transferring image data of the document sheet from the reading unit to the image processing unit via the image bus;
• setting, in a case where transfer of image data of one side of the document sheet is singly executed, a frequency of the image transfer clock to a predetermined frequency;
• and
• switching, in a case where transfer of image data of the other side of the document sheet, which is executed in succession to the transfer of image data of one side of the document sheet, is to be executed in parallel with the image processing, the frequency of the image transfer clock from the predetermined frequency to a frequency lower than the predetermined frequency.