1.INTRODUCTION
The MX83063HC is a single chip keyboard activity, sends the scan code to system, and accepts the command from system. The MX83063HC function both in USB and PS/2 interface environment. For PS/2 interface, it supports IBM PC AT and all compatible machines. For USB interface, it supports the USB standard request version 1.1 as well as HID class request version 1.1. The MX83063HC is the most powerful USB+PS2 keyboard encoder. It is a crystal-less and low cost BOM solution with the minimal external components