Super I/O with Temperature Sensing, Quiet Auto Fan and Glue Logic with PECI

Features

  • General Features
    • 3.3 Volt Operation (SIO Block is 5 Volt Tolerant)
    • LPC Interface
    • Programmable Wake-Up Event Interface
    • PC99, PC2001 Compliant
    • ACPI 2.0 Compliant
    • Multiplexed Command, Address and Data Bus
    • Serial IRQ Interface Compatible with Serialized IRQ Support for PCI Systems
    • PME Interface
    • ISA Plug-and-Play Compatible Register Set
    • 25 General Purpose Input/Output Pins
    • System Management Interrupt
  • AC Power Failure Recovery
  • Watchdog Timer
  • 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 One Floppy Drive
    • 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 Eight IRQ and Three DMA Options
    • Support 3 Mode FDD
  • Enhanced Digital Data Separator
    • 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbps Data Rates
    • Programmable Precompensation Modes
  • Serial Ports
    • Two Full Function Serial Ports
    • High Speed NS16C550A 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 ASK IR
    • 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
  • 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
  • Motherboard GLUE Logic
    • IDE Reset Output
    • (4) Buffered PCI Reset Outputs with software controlled reset capability - default transparent
    • Front Panel Reset Debouncing and Power Good Signal Generation
    • Power Supply Turn On Circuitry with Support for power button on PS/2 Keyboard
    • Resume Reset Signal Generation
    • SMBus Isolation Circuitry (2 sets external and 1 set internal for Hardware Monitoring Block)
    • SMBus 2.0 compliant interface for Hardware Monitoring
    • LED Control (2)
  • Fan Control
    • 5 PWM (Pulse width Modulation) Outputs
    • Two and three piece linear fan function options
    • Low frequency and high frequency PWM support
    • 6 Fan Tachometer Inputs
    • Programmable automatic fan control based on temperature
    • Interrupt Pin for out-of-limit Fantach Events
    • Fantach events generate PMEs
  • Temperature Monitor
    • Monitoring of Two Remote Thermal Diodes
    • Processor temperature monitoring by PECI
    • Internal Ambient Temperature Measurement
    • Limit Comparison of all Monitored Values
    • Interrupt Pin for out-of-limit Temperature Indication
    • Thermal events generate PMEs
    • Configurable offset for internal or external temperature channels
  • Voltage Monitor
    • Monitor Power Supplies (2 at 1.125V, one at 5V, one each for Vccp, Vbat, VTR, and VCC)
    • Limit Comparison of all Monitored Values
    • Interrupt Pin for out-of-limit Voltage Indication
    • Voltage events generate PME's and/or Speaker warning
  • Security Features
    • Security Key Register (32 byte) for Device Authentication
  • 3 VID (Voltage Identification) Inputs
  • Phoenix Keyboard BIOS ROM
  • 128 Pin QFP Lead-Free RoHS Compliant Package

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