FEATURES

General  

Meet LPC Spec. 1.0

Support LDRQ#（LPC DMA）, SERIRQ （serial IRQ）

Include all the features of Winbond I/O W83977TF and W83977EF

Integrate Hardware Monitor 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  

UART

Two high-speed 16550 compatible UARTs with 16-byte send/receive FIFOs

MIDI compatible

Fully programmable serial-interface characteristics：  

5, 6, 7 or 8-bit characters  

Even, odd or no parity bit generation/detection  

1, 1.5 or 2 stop bits generation

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