Detailed Features: IO Engine

        IOE Controller
  • PCI 64-bit I/O bus
  • 2KByte I/O read-ahead/write behind buffers
  • PS/2 keyboard and mouse interface
  • Ethernet interface
  • 10/100 Mbit/Second media access controller
  • Media independent interface to 10/100 TX transceiver
  • Interface to Super I/O Chip for serial/parallel interface
  • Dual high-speed serial interfaces
  • 1284 enhanced parallel port
  • Interface to Real Time Clock Chip
  • Interface to Flash System ROM
        ISA Bus Interface
  • Connects serial/parallel PC peripherals
  • Game port devices
  • External Dallas DS1687 calendar clock
  • Up to 2 MB of flash-ROM
  • NIC serial PROM
  • Five DMA channels are available for the serial/parallel interfaces
  • Super I/O device provides:
    • 2 high-speed 16C550C serial ports
    • Clock prescalers on both serial ports
    • Serial ports supports MIDI and normal baud rates up to 460.8Kb
    • EPP/ECP-1284 high speed parallel port with downward compatible mode
        Ethernet Interface
  • 10/100 BaseT Autosensing
  • Half-duplex CSMA-CD & full-duplex circuit switched modes
  • IP checksum computed for all received packets
  • Multicast address filtering, using 64 bit hash buckets
  • Flexible transmit and receive buffering
  • Automatic transmit padding of short packets to min Ethernet length
  • Programmable receive interrupt delay time
  • Programmable receive gathering of short packets into single buffers
  • Programmable inter-packet gap spacing
  • Functional subset of IOC3 Ethernet interface
  • Actual transmit/receive packets are stored in main memory
        SCSI via 64 bit PCI Bus
  • External 40Mb Fast/Wide
  • Internal 40Mb Fast/Wide
    • System drive
    • One Option drive
    • CDROM drive
        I²C Interface
  • Controls external codecs
  • Hardware collision detection
  • Software backoff/retry mechanism for bus arbitration
        Video I/O
  • Input Filtering/MIP-Mapping, Color Conversion, DMA
  • Output DMA, Color Conversion, Filtering
        Audio I/O DMA
  • Synchronization with video
        PCI Expansion Bus
  • Need to describe where/how this is accessed? Next Gen?
  • Support for up to five external 33.33 Mhz bus master devices
  • Supports minimum of 3 64-bit slots and 2 on-board SCSI
  • 32-bit or 64-bit
  • Read-ahead buffers to enable high-performance DMA

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