On power up, the firmware starts executing code at address 0h. After some housekeeping tasks it will determine whether it is attached to a USB or a PS2 interface. From that, it will branch either to USB_Main or PS2_Main. -On power up, the

CY7C63723做USB 键盘（红外)源码-do CY7C63723 USB keyboard (IR) source

combi mouse source code by cy7c63723, usb/ps2 mouse in C and ASM with hardware circuit design files

USB鼠标的设计资料,包括源代码(C代码)、电路设计原理图和CY7C63723芯片的资料。,USB mouse design information, including source code (C code), circuit design and schematic diagram of the CY7C63723 chip data.