Computer system capable of detecting identification of peripheral device connected thereto and method of detecting identification of peripheral device using the same

摘要

A computer system capable of detecting an identification (ID) of a peripheral device connected thereto includes a connection circuit having a peripheral interface connectable to the peripheral device and a data transmission interface for data transmission between the peripheral device and a CPU of the computer system, a detect circuit connected to the connection circuit and a DC voltage source of the computer system, and a convert unit. The detect circuit has an output terminal set and a plurality of resistors having resistances for producing a specific DC potential divided by the DC voltage source at the output terminal set. The convert unit is coupled to the output terminal set and the CPU for converting the specific DC potential at the output terminal set into a digital signal corresponding to the ID of the peripheral device for output to the CPU.