serial devices through two buffered 16C550 UART serial ports, supporting up to 115.2 KB per second

two USB devices

joystick through the MIDI/game port

speaker and microphone connectors (line in, line out, microphone in).

The following table lists the major components on the system board.

System Board Components

Component

Function

Pentium III Processor

667-MHz or higher processor , 133-MHz or higher FSB

Intel 820 Chipset:

 

82820 Memory Controller Hub

Uses Intel graphics technology, software drivers, and

(MCH)

Direct AGP (integrated AGP) to create vivid 2D and 3D

 

effects and images. Features integrated Hardware Motion

 

Compensation to improve video quality.

 

Features processor and host bus optimized for the

 

processor, integrated RDRAM controller, 3D graphics

 

visual enhancements, 3D graphics texturing

 

enhancements, digital video output, integrated 24-bit

 

230 MHz RAMDAC, 2D graphics, arithmetic stretch blitter

 

video, integrated graphics memory controller, display

 

cache interface, arbitration scheme and concurrency, data

 

buffering, power management functions, and support for

 

I/O bridge.

82801AA I/O Controller Hub

Uses Accelerated Hub Architecture to make direct

(ICH)

connection from graphics and memory to the integrated

 

AC97 controller, IDE controller, and dual USB ports.

 

Supports PCI bus interface, integrated IDE controller,

 

USB, AC’97 Link for audio and telephone Codecs,

 

interrupt controller, timers, 3.3V operation, power

 

management logic, enhanced DMA controller, real-time

 

clock, SM bus, and Firmware Hub.

82802 Firmware Hub (FWH)

Stores system BIOS and video BIOS, eliminating a

 

redundant nonvolatile memory component. In addition, the

 

82802 contains a hardware Random Number Generator

 

(RNG). The Intel RNG provides truly random numbers to

 

enable fundamental security building blocks supporting

 

stronger encryption, digital signing, and security protocols.

 

Features Intel Platform Compatibility, Firmware Hub

 

Hardware Interface Mode, configurable interfaces, flash

 

memory for non-volatile storage, and address/address

 

multiplexed interface mode.

 

 

4-8 System Board

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NEC PowerMate CT manual System Board Components, Component Function, Mch, Ich