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**Why this document is not GPL or a wiki
The document is copyright,  it is NOT GPL'ed text. While  the GPL is a
fantastic  idea, I  have chosen  not to  make this  freely copied  and
modified. The reasons are as follows:

1. GPL text tends to be  copied...EVERYWHERE. For example, if you look
   up a subject  on wikipedia, then try to get  more information, or a
   different perspective on  say about.com.  There you  find the EXACT
   SAME  TEXT.  This  is what  mirrors  are for.   It's an  unintended
   consequence,  but  it  can  lead  to  misinformation  being  spread
   everywhere. A bigger problem.

2. There seems to be fewer  and fewer informative websites. It used to
   be that  if you  searched for  something you  would find  a website
   about a particular  subject. Now you tend to  find the encyclopedia
   and often nothing else (well quickly).

In addition the majority of this text is quotes.

The wiki  concept is a good  idea, but they have  problems. Because no
one "owns" the  work they seem to  go to two extremes.   Either no one
maintains them, or there are edit wars. Also anyone can edit them.

**Definition of a chip set:...
**'chip set', 'chip-set' or 'chipset'?...
**What's not included:...
**Who made the first chip set?...
**Spelling errors/mistyped words...
**Info needed on:...
**A note on VESA support of 486 chipsets....
**Datasheets:...
*_IBM...
*ACC Micro...
*ALD...
*ALi...
*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82395SX     Smart Cache                                     12/17/90
***Notes:...
**82396SX     Smart Cache                                     12/17/90...
**82485       Turbo Cache (and 485Turbocache)                      c90...
**82489DX       Advanced Programmable Interrupt Controller    10/12/92...
**82495DX/490DX DX CPU-Cache Chip Set                           <Sep91...
**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91...
**82496/491     Cache Controller / Cache RAM (for P5 Pentium) 03/22/93...
**82497/492   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**82498/493   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**
**Later chipsets (basic spec):
**440 series:...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
*Headland/G2...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
**5571           (Trinity) Pentium PCI/ISA Chipset (75MHz)   <12/09/96
***Info:...
***Configurations:...
***Features:...
**5581/5582      (Jessie)  Pentium PCI/ISA Chipset (75MHz)   <04/15/97...
**5591/5592/5595 (David)   Pentium PCI A.G.P. Chipset        <01/09/98...
**5596/5513      (Genesis) Pentium PCI Chipset               <03/26/96...
**5597/5598      (Jedi)    Pentium PCI/ISA Chipset           <04/15/97...
**530/5595       (Sinbad) Host, PCI, 3D Graphics & Mem. Ctrl.<11/10/98...
**540            (Spartan) Super7 2D/3D Ultra-AGP Single C.S.<11/30/99...
**55x            SoC (System-on-chip)                        <03/14/02...
**
**Support chips:
**85C206     Integrated Peripheral Controller [no datasheet]         ?...
**5595       Pentium PCI System I/O                          <12/24/97...
**950        LPC I/O                                         <07/16/99
***Info:...
***Versions:...
***Features:
o   Low Pin Count Interface
    - Comply with Intel LPC Interface Specification Rev. 1.0 
      (Sept. 29, 1997)
    - Supports Serial IRQ Protocol
    - Supports PCI PME# Interface
o   PC98/PC99, ACPI Compliant
    - PC98 & PC99 compliant
    - Register sets compatible with "Plug and Play ISA Specification 
      Rev. 1.0a"
    - ACPI V. 1.0 compliant
    - Supports 9 logical devices
o   Enhanced Hardware Monitor
    - Built-in 8-bit Analog to Digital Converter
    - 3 thermal inputs from remote thermistors or thermal diode or 
      diode-connected transistor
    - 8 voltage monitor inputs (VBAT is measured internally.)
    - WatchDog comparison of all monitored values
o   Fan Speed Controller
    - Provides Fan ON/OFF and PWM control
    - 3 programmable Pulse Width Modulation (PWM) Fan control outputs
    - Each PWM output supports 128 steps of PWM modes
    - Monitors 3 Fan tachometer inputs
o   Game Port
    - Built-in 558 quad timers and buffer chips
    - Supports direct connection of two joysticks
    - Game port signals are multiplexed with GPIOs
o   Two 16C550 UARTs
    - Supports two standard Serial ports
    - UART1 is dedicated for Serial port
    - UART2 supports  either Serial Port or IrDA 1.0/ASKIR
o   Consumer Remote Control (TV remote) IR with Power-up Feature
o   IEEE 1284 Parallel Port
    - Standard mode -- Bi-directional SPP compliant
    - Enhanced mode -- EPP V. 1.7 and 1.9 compliant
    - High speed mode -- ECP, IEEE 1284 compliant
    - Backdrive current reduction
    - Printer power-on damage reduction
    − Supports POST (Power-On Self Test) Data Port
o   Floppy Disk Controller
    - Supports two 360K/ 720K/ 1.2M/ 1.44M/ 2.88M floppy 
      disk drives
    - Enhanced digital data separator
    - 3-Mode drives supported
    - Supports automatic write protection via software
o   48 General Purpose I/O Pins
    - Input mode supports switch de-bounce
    - SMI is routed through GPIOs
o   Flash ROM Interface
    - Up to 4M bits flash supported
o   Single 24/48 MHz Clock Inputs
o   Single +5V Power Supply
o   128-Pin PQFP

**Other:...
**PII/III/Pro...
**Athlon etc...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...