Pcie device with changeable function types and operating method thereof

Abstract

A peripheral component interconnect express (PCIe) device includes a plurality of common functions performing operations associated with a PCIe interface according to a function type of each of the plurality of common functions, each of the plurality of common functions being programmable to be a function type selected from a plurality function types, and a function type controller determining the function type of each of the plurality of common functions based on function type setting information provided from a host. Each function type may be a physical function type, a virtual function type, or a disable function type.