PURPOSE: To perform the direct storing access processing even at the time of a microprocessor not having a holding function, concerning an information processor equipped with a microprocessor not having the holding function to hold the execution of a job and/or the data output.

CONSTITUTION: A direct storing access control means 4, in which in accordance with the direct storing access transfer request, the supply of an external clock necessary to the action of a microprocessor 1 to the microprocessor 1 is prevented, and the direct storing transfer data are transferred through a shared bus 2 with the microprocessor 1 to a memory 3, is equipped.