L - Intel 82801BA ICH2
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Intel 82801BA ICH2The Intel ICH2 Logic controller is responsible for the following:

  • Integrated Intel Kinnereth 10/100 LAN controller

    • PCI Bus Master interface
    • CSMA/CD Protocol Engine
    • Serial CSMA/CD unit interface that supports the 82562ET (10/100 megabits per second (Mbps) Ethernet) physical layer interface device
    • PCI Power Management

      • Supports APM
      • Supports ACPI technology
      • Supports Wake up from suspended state (Wake-On-LAN technology)

  • PCI bus interface

    • Supports PCI bus at 33 megahertz (MHz)
    • Supports PCI Specification Revision 2.2
    • Supports up to six master devices on PCI bus

  • Integrated IDE controller

    • Supports Ultra DMA 33/66/100
    • Supports PIO Mode 4 transfers
    • Separate IDE connections for primary and secondary controllers
    • Independent timing of up to four drives

  • Two separate USB controllers supporting two USB ports

    • UHCI implementation with four ports
    • Supports wake from sleep states S1,S3, and S4
    • Supports legacy keyboard and mouse software

  • AC '97 link for audio and modem codecs

    • AC '97 2.1 compliant
    • Separate independent PCI functions for audio and modem
    • Supports wake-up events

  • Power Management

    • Support for APM-based legacy power management
    • ACPI 1.0b compliant

  • Low pin count (LPC) bus

    • Allows connection of legacy ISA and X-bus devices
    • Supports two master DMA devices

  • Real-time clock

    • 256-byte battery backed CMOS RAM
    • Hardware implementation to indicate century rollover
    • SM bus host interface allows CPU to communicate with clock