| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an information processor capable of processing a control code requiring an urgent process by a processing means even before a series of DMA transfer is completed. <P>SOLUTION: This information processor 2 has: a reception means 15 for receiving a transmission code from a host device 6; a storage means 7 for storing the transmission code; a DMA control means 15 for executing DMA transfer from the reception means to the storage means; a processing means 18 for executing a process based on the control code included in the transmission code. The information processor is characterized by that the DMA control means compares the transmission code received by the reception means during the DMA transfer with the control code previously stored in the control code storage means; and the processing means executes a process based on the received transmission code when the comparison result of the DMA control means is coincident. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
