Pci device, interface system including the same, and computing system including the same

An interface system comprising:

• a PCI bus;
• at least one PCI device connected to the PCI bus;
• and
• a host controller connecting the at least one PCI device to a host through the PCI bus according to a request of the host;
• wherein the at least one PCI device includes
• a first memory including a plurality of page buffers having physical addresses,
• a base address register including a plurality of base addresses,
• a first address translation unit configured to translate each of the plurality of base addresses to a corresponding one of a plurality of virtual addresses, and
• a map table including a plurality of map table entries that are each accessed in correspondence to each of the plurality of virtual addresses, and configured to map each of the plurality of virtual addresses onto one of the physical addresses of the plurality of page buffers,
• wherein the first address translation unit is configured to translate each of the plurality of virtual addresses to a corresponding one of the physical addresses using the map table.

A method of operating a peripheral component interconnect (PCI) device including a first memory with a plurality of page buffers having physical addresses, and a base address register including a plurality of base addresses, the method comprising:

• translating each of the plurality of base addresses to a corresponding one of a plurality of virtual addresses;
• mapping each of the plurality of virtual addresses onto one of the physical addresses of the plurality of page buffers in map table entries of a map table;
• accessing the map table entries corresponding to each of the plurality of virtual addresses;
• and
• translating each of the plurality of virtual addresses to a corresponding one of the physical addresses using the map table.