SUPER MICRO Computer H8DII+-F Manuel D’Utilisation

Chapter 1: Introduction

1-13

The disk drive adapter functions of the Super I/O Winbond

®

 83627DHG chip include 

a fl oppy disk drive controller that is compatible with industry standard 82077/765, a 

data separator, write pre-compensation circuitry, decode logic, data rate selection, 

a clock generator, drive interface control logic and interrupt and DMA logic. The 

wide range of functions integrated onto the Super I/O greatly reduces the number 

of components required for interfacing with fl oppy disk drives. 

The Super I/O provides two high-speed, 16550 compatible serial communication 

ports (UARTs), one of which supports serial infrared communication. Each UART 

includes a 16-byte send/receive FIFO, a programmable baud rate generator, 

complete modem control capability and a processor interrupt system. Both UARTs 

provide legacy speed with baud rate of up to 115.2 Kbps as well as an advanced 

speed with baud rates of 250 K, 500 K, or 1 Mb/s, which support higher speed 

modems.

The Super I/O provides functions that comply with ACPI (Advanced Confi guration 

and Power Interface), which includes support of legacy and ACPI power management 

through a SMI or SCI function pin. It also features auto power management to reduce 

power consumption.

The IRQs, DMAs and I/O space resources of the Super I/O can be fl exibly adjusted 

to meet ISA PnP requirements, which support ACPI and APM (Advanced Power 

Management).