Intel ® 82801Ba I/O Controller Hub (Ich2); Firmware Hub (Fwh); Input/Output (I/O) Controller; Real-Time Clock - Intel D850EMD2 Product Manual

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Intel 82801BA I/O Controller Hub (ICH2)
The ICH2 has these features:
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Integrated Intel
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Support for the PCI interface
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Support for the Low Pin Count (LPC) interface
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Integrated IDE controller
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Support for CNR
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General purpose I/O
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Power management logic
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Support for the System Management Bus
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Real-Time Clock

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Support for AC '97 audio devices and modems

Firmware Hub (FWH)

The FWH has these features:
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System BIOS
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System security and manageability logic that enables protection for storing and updating of
platform information

Input/Output (I/O) Controller

The SMSC LPC47M142-NC LPC bus I/O controller features the following:
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Low pin count (LPC) interface
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3.3 V operation
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Two serial ports
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One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port
(EPP) support
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Serial IRQ interface compatible with serialized IRQ support for PCI systems
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PS/2 mouse and keyboard interfaces
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Interface for one 1.2 MB, 1.44 MB, or 2.88 MB diskette drive
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Intelligent power management, including a programmable wake up event interface
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PCI power management support
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Two fan tachometer inputs
Real-Time Clock
The desktop boards have a time-of-day clock and 100-year calendar. A battery on the desktop
board keeps the clock current when the computer is turned off.
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Ethernet LAN MAC (external PLC required)
Desktop Board Features
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