| 摘要 |
<p>PROBLEM TO BE SOLVED: To lighten the load of processing for access on a configuration register of a PCI device and to make the processing fast. SOLUTION: The device 10 which is provided for an information processor and operates under the control of the information processor is equipped with a plurality of configuration registers 10 as registers for processing initial settings and a plurality of memory mapped IO registers 2020 as registers used for normal operation. In the address space of the memory mapped IO registers 20, the address space of the configuration registers 10 is prescribed, and the addresses of the configuration registers 10 prescribed in the address space of the memory mapped IO register 20 are specified to access the configuration registers 10.</p> |
