The W83697HF is evolving product from Winbond's most popular I/O family. The disk drive adapter functions of W83697HF include a floppy disk drive controller compatible with the industry standard 82077/765. The W83697HF provides two high-speed serial communication ports (UARTs), one of which supports serial Infrared communication. In addition, the W83697HF provides IR functions: IrDA 1.0 (SIR for 1.152K bps) and TV remote IR. The W83697HF supports one PC-compatible printer port (SPP), Bi-directional Printer port (BPP) and also Enhanced Parallel Port (EPP) and Extended Capabilities Port (ECP). The W83697HF provides a set of flexible I/O control functions to the system designer through a set of General Purpose I/O ports. These GPIO ports may serve as simple I/O or may be individually configured to provide a predefined alternate function. General Purpose Port 1 is designed to be functional even in power down mode (VCC is off). The W83697HF is made to fully comply with Microsoft PC98 and PC99 Hardware Design Guide, and meet the requirements of ACPI. The W83697HF contains a game port and a MIDI port. The game port is designed to support 2 joysticks and can be applied to all standard PC game control devices, They are very important for a entertainment or consumer computer. The W83697HF provides Flash ROM interface. That can support up to 4M legacy flash ROM. The W83697HF support hardware status monitoring for personal computers. It can be used to monitor several critical hardware parameters of the system, including power supply voltages, fan speeds, and temperatures, which are very important for a high-end computer system to work stably and properly. Moreover, W83697HF support the Smart Fan control system, including the "Thermal Cruise" and "Speed Cruise" functions. Smart Fan can make system more stable and user friendly.