INFORMATION PROCESSOR AND CONTROL METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To reduce the unnecessary power consumption of an information processor of a portable computer device or the like operated with a battery to extend the battery operation time. SOLUTION: In a graphics accelerator to quickly perform the plotting processing to a VRAM, plotting command storage conditions in a FIFO buffer memory 13-5 where plotting commands to be processed are stored are monitored, and supply of a clock signal from a clock control part 13-1 to a plotting part 13-10 is stopped when the FIFO buffer memory 13-5 is made empty and the plotting processing in the plotting part 13-10 galls into the nonexecution state.