用4BIT OTP单片机实现USB/PS2 MOUSE的设计 USB 低速设备的设计发展到现在已经有了相当的成熟度。 各家IC公司都推出了USB DEVICE端的解决方案, 一般以8 BIT CPU CORE + USB SIE为主流构架。 SH69P04是中颖电子(Sinowealth)本着丰富USB产品应用,降低USB IC成本而设计的4BIT OTP单片机, 用以开发USB DEVICE设备。-the design of usb or PS2 mouse

键盘按键通用测试程序。 可以测试普通键，热键及特殊按键。 可以测试按键的好坏。 支持PS2键盘与USB键盘插入时自动复位测试-Keyboard universal test procedures. You can test the general, hotkeys and special keys. You can test the quality of the key. Automatic reset test support PS2 keyboard and USB keyboard ins

M1543: Desktop South Bridge The M1543 is a bridge between PCI and ISA bus, providing full PCI and ISA compatible functions. The M1543 has Integrated Super I/O( Floppy Disk Controller, 2 serial ports/1 parallel port ), System Peripherals (ISP) (2

M1533: PCI-to-ISA Bus Bridge The M1533 is a bridge between PCI and ISA bus, providing full PCI and ISA compatible functions. The M1533 has Integrated System Peripherals (ISP) (2 x 82C59 and Serial interrupt, 1 x 82C54), advanced features (Type F