Information processing apparatus including SRAM capable of shifting to plurality of power saving modes according to control signal and control method thereof

A control method of a static random access memory (SRAM) connected to a printing apparatus, capable of having a first power mode, a second power mode that is capable of holding data and save power more than the first power mode, and a third power mode that is not capable of holding data but is capable of saving more power than the second power mode, the control method comprising:

• providing power to the SRAM to write image data into the SRAM;
• writing the image data into the powered SRAM while a power mode of the SRAM is the first power mode,
• reading the written image data from the powered SRAM while the power mode of the SRAM is the first power mode, and
• shifting the power mode of the powered SRAM from the first power mode to the third power mode based on a determination that all of the written image data has been read from the SRAM.

A control apparatus comprising:

• a controller configured to control a static random access memory (SRAM) capable of having a first power mode, a second power mode that is capable of holding data and saving power more than the first power mode and a third power mode that is not capable of holding data but is capable of saving more power than the second power mode,
• wherein the controller is configured to:
• provide power to the SRAM to write image data into the SRAM and set the first power mode;
• write the image data into the powered SRAM while a power mode of the SRAM is the first power mode;
• read the written image data from the powered SRAM while the power mode of the SRAM is the first power mode;
• and
• shift the power mode of the powered SRAM from the first power mode to the third power mode based on a determination that all of the written image data has been read from the SRAM.