In the package 128-BFQFP, the ICs is enclosed.The package Tube contains integrated circuit.In order to mount integrated circuit, integrated circuit is done in the way of Surface Mount.The 10/100 Integrated Switch type is available in many integrated circuits.The KS8993 family contains similar integrated circuit systems.It is appropriate to apply the ICs to Port Switch/Network Interface.A 128-PQFP (14x20) package is used to package the ICs complete.