Features

• 3.3 Volt Operation (SIO Block is 5 Volt Tolerant)
• LPC Interface
• ACPI 1.0/2.0 Compliant
• Fan Control
  • Fan Speed Control Outputs (2)
  • Fan Tachometer Inputs (2)
• Programmable Wake-Up Event Interface
• PC98, PC99, PC01 Compliant
• Dual Game Port Interface
• MPU-401 MIDI Support
• General Purpose Input/Output Pins (37)
• ISA Plug-and-Play Compatible Register Set
• Intelligent Auto Power Management
• System Management Interrupt
• 2.88MB Super I/O Floppy Disk Controller
  • Licensed CMOS 765B Floppy Disk Controller
  • Software and Register Compatible with SMSC's Proprietary 82077AA Compatible Core
  • Supports Two Floppy Drives
  • Configurable Open Drain/Push-Pull Output Drivers
  • Supports Vertical Recording Format
  • 16-Byte Data FIFO
  • 100% IBM Compatibility
  • Detects All Overrun and Underrun Conditions
  • Sophisticated Power Control Circuitry (PCC) Including Multiple Powerdown Modes for Reduced Power Consumption
  • DMA Enable Logic
  • Data Rate and Drive Control Registers
  • 480 Address, Up to 15 IRQ and Three DMA Options
• Enhanced Digital Data Separator
  • 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbps Data Rates
  • Programmable Precompensation Modes
• Keyboard Controller
  • 8042 Software Compatible
  • 8 Bit Microcomputer
  • 2k Bytes of Program ROM
  • 256 Bytes of Data RAM
  • Four Open Drain Outputs Dedicated for Keyboard/Mouse Interface
  • Asynchronous Access to Two Data Registers and One Status Register
  • Supports Interrupt and Polling Access
  • 8 Bit Counter Timer
  • Port 92 Support
  • Fast Gate A20 and KRESET Outputs
• Serial Ports
  • Two Full Function Serial Ports
  • High Speed NS16C550 Compatible UARTs with Send/Receive 16-Byte FIFOs
  • Supports 230k and 460k Baud
  • Programmable Baud Rate Generator
  • Modem Control Circuitry
  • 480 Address and 15 IRQ Options
• Infrared Port
  • Multiprotocol Infrared Interface
  • IrDA 1.0 Compliant
  • SHARP ASKIR
  • 480 Address, Up to 15 IRQ
• Multi-Mode Parallel Port with ChiProtect
• Standard Mode IBM PC/XT, PC/AT, and PS/2 Compatible Bidirectional Parallel Port
  • Enhanced Parallel Port (EPP) Compatible - EPP 1.7 and EPP 1.9 (IEEE 1284 Compliant)
  • IEEE 1284 Compliant Enhanced Capabilities Port (ECP)
  • ChiProtect Circuitry for Protection
  • 960 Address, Up to 15 IRQ and Three DMA Options
• LPC Interface
  • Multiplexed Command, Address and Data Bus
  • Serial IRQ Interface Compatible with Serialized IRQ Support for PCI Systems
  • PME Interface
• Hardware Monitor
  • Monitor Power Supplies (+2.5V, +3.3V, +5V, +12V, +1.8V, +1.5V, Vccp (processor voltage) and VCC or HVSB)
  • Remote Thermal Diode Sensing for Two External Temperature Measurements
  • Internal Ambient Temperature Measurement
  • Limit Comparison of all Monitored Values
  • System Management Bus (SMBus) Interface
  • THERM# Pin for Out-of-Limit Temperature or Voltage Indication
  • RESET# Pin for Generating 20msec Low Reset Pulse
  • Configurable Offset for Internal or External Temperature Channels
• Phoenix Keyboard BIOS ROM
• 128 Pin QFP, lead-free RoHS compliant package, 3.2mm footprint