Hardware PropertiesInterfacing devices
Types of UARTs
Loop Back Plug
The standard port adresses are given below. Most PCs have them. If you are using IBM PS/2, equipped with a micro-channel bus, different addresses and interrupt requests can be expected. Just like LPT ports, base adresses for Đ╬╠-ports can be obtained from the data range in BIOS.
The table below contains the address having the addresses for COM-ports in BIOS data range. Each address has two bytes.
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