82091AA中文資料英特爾數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

The 82091AA Advanced Integrated Peripheral (AIP) is an integrated I/O solution containing a floppy disk controller, 2 serial ports, a multi-function parallel port, an IDE interface, and a game port on a single chip. The integration of these I/O devices results in a minimization of form factor, cost and power consumption. The floppy disk controller is the 82078 core. The serial ports are 16550 compatible.

■ Single-Chip PC Compatible I/O Solution for Notebook and Desktop Platforms:

— 82078 Floppy Disk Controller Core

— Two 16550 Compatible UARTs

— One Multi-Function Parallel Port

— IDE Interface

— Integrated Back Power Protection

— Integrated Game Port Chip Select

— 5V or 3.3V Supply Operation with 5V Tolerant Drive Interface

— Full Power Management Support

— Supports Type F DMA Transfers for Faster I/O Performance

— No Wait-State Host I/O Interface

— Programmable Interrupt Interfaces

— Single Crystal/Oscillator Clock (24 MHz)

— Software Detectable Device ID

— Comprehensive Powerup Configuration

■ The 82091AA is 100 Percent Compatible with EISA, ISA and AT

■ Host Interface Features

— 8-Bit Zero Wait-State ISA Bus Interface

— DMA with Type F Transfers

— Five Programmable ISA Interrupt Lines

— Internal Address Decoder

■ Parallel Port Features

— All IEEE Standard 1284 Protocols Supported (Compatibility, Nibble, Byte, EPP, and ECP)

— Peak Bi-Directional Transfer Rate of 2 MB/sec

— Provides Interface for Low-Cost Engineless Laser Printer

— 16-Byte FIFO for ECP

— Interface Backpower Protection

■ Floppy Disk Controller Features

— 100 Percent Software Compatible with Industry Standard 82077SL and 82078

— Integrated Analog Data Separator 250K, 300K, 500K, and 1 MBits/sec

— Programmable Powerdown Command

— Auto Powerdown and Wakeup Modes

— Integrated Tape Drive Support

— Perpendicular Recording Support for 4 MB Drives

— Programmable Write PreCompensation Delays

— 256 Track Direct Address, Unlimited Track Support

— 16-Byte FIFO

— Supports 2 or 4 Drives

■ 16550 Compatible UART Features

— Two Independent Serial Ports

— Software Compatible with 8250 and 16450 UARTs

— 16-Byte FIFO per Serial Port

— Two UART Clock Sources, Supports MIDI Baud Rate

■ IDE Interface Features

— Generates Chip Selects for IDE Drives

— Integrated Buffer Control Logic

— Dual IDE Interface Support

■ Power Management Features

— Transparent to Operating Systems and Applications Programs

— Independent Power Control for Each Integrated Device

■ 100-Pin QFP Package (See Packaging Spec. 240800)