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)