GENERAL DESCRIPTION
The W83697UF is evolving product from Winbond's mostpopular I/O family. They feature a whole new interface, namely LPC (Low Pin Count) interface, which will be supported in the new generation chip-set. This interface as its name suggests isto provide an economical implementation of I/O's interface with lower pin count and still maintains equivalent performance as its ISA interface counterpart.

FEATURES
General
• Meet LPC Spec. 1.1
• Support LDRQ#(LPC DMA), SERIRQ (serial IRQ)
• Include all the features of Winbond I/O W83877TF
• Integrate Smart Card functions
• Compliant with Microsoft PC98/PC99 Hardware Design Guide
• Support DPM (Device Power Management), ACPI
• Programmable configuration settings
• Single 24 or 48 MHz clock input
FDC
• Compatible with IBM PC AT disk drive systems
• Variable write pre-compensation with track selectable capability
• Support vertical recording format
• DMA enable logic
• 16-byte data FIFOs
• Support floppy disk drives and tape drives
• Detects all overrun and underrun conditions
• Built-in address mark detection circuit to simplify the read electronics
• FDD anti-virus functions with software write protect and FDD write enable signal (write data signal was forced to be inactive)
• Support up to four 3.5-inch or 5.25-inch floppy disk drives
• Completely compatible with industry standard 82077
• 360K/720K/1.2M/1.44M/2.88M format; 250K, 300K, 500K, 1M, 2M bps data transfer rate
•Support 3-mode FDD, and its Win95/98 driver