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**Spelling errors/mistyped words
Yes, I  know there are  spelling errors,  and things are  mistyped. It
seems no matter  how hard I try  my fingers hit 't'  twice when typing
'compatible' rendering it 'compattible' numerous, (thousands actually)
times.  I  don't have the  time or the will  to check the  spelling of
everything. Basic spell checking has been peformed. Please let me know
if  there is  anything that  would lead  to incorrect  information, or
something  is so  mangled  that  it needs  revising.  But  if you  can
basically  understand  what was  intended,  just  cope with  it.  Just
cope:-)

BTW, "110" port is  an "I/O" port that has been OCRed  badly, as is an
"1/0" port.

**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...
**82489DX       Advanced Programmable Interrupt Controller    10/12/92
***Notes:...
***Info:...
***Versions:...
***Features:...
**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...
**82C556M/7M/8E  Viper-N+ Viper Notebook Chipset                  c:96
***Notes:...
***Info:...
***Configurations:...
***Features:
System 
o   100% PC/AT compatible
o   Supports 3.3V Intel Pentium 75/90/100/120 processors at bus 
    frequencies up to 66MHz
o   Supports Cyrix 6x86 processor

DRAM 
o   Full 64-bit FPM/EDO DRAM controller
    - Supports 2-2-2 EDO pipeline at 66MHz bus speed
    - Supports 5V or 3.3V DRAM with-out buffers
    - Supports up to 512MB
    - Controls up to 6 banks
    - Post write buffer
o   Selectable current drive for DRAM bus 

Cache 
o   L1 Cache supports write-through and write-back modes
o   Power managed L2 Cache
    - 64KB-2MB cache
    - Write-back or write-through modes
    - 2-1-1-1 synchronous cache cycles
    - 3-1-1-1 pipelined synchronous cache cycles
    - Combined tag/dirty SRAM option

ISA/VL/PCI Bus 
o   Integrated PCI bus with operation up to 33MHz; supports up to 
    three masters
o   CLKRUN# support for PCI
o   Distributed DMA support (software-based)
o   100% AT-compatible ISA bus; 3.3V or 5V operation, also supports 
    ISA bus masters
o   VL bus support (slave only)
o   Integrated Local Bus IDE supports four drives, which can be bus 
    masters, modes 4 and 5 supported  

Power Management
o   Advanced Power Management Unit
o   Full CPU System Management Mode (SMM) support
o   Full CPU power control through "clock throttling"
o   Full system clock control, even CPU clock can be stopped during 
    APM doze mode
o   Both hardware and software controlled power management
o   Full peripheral power control
o   13 flexible peripheral timers
o   Sixteen power control pins
o   I/O trapping captures address and data
o   Distributed DMA support (software-based)
o   Full peripheral activity tracking
o   Automatic peripheral power-up/power-down features
o   Full suspend current leakage control
o   36 Power Management Interrupt (PMI) sources
o   Eight external power management interrupt sources
o   Supports SMBASE re-programmability that allows the cache to be
    maintained during system management mode, avoiding cache fills 
    after returning from SMM
o   Proprietary automatic internal pull-up/pull-down resistors 
    activated only when needed to reduce power consumption

Thermal Management
o   Advanced Thermal Management Unit
o   Internal mechanism tracks CPU activity and initiates cool down
    mode before CPU temperature reaches a damaging level
o   External sensor option

Packaging
o   82C556M Data Buffer
    - 176 pin TQFP (0.5mm pin spacing)
o   82C557M System Controller
    - 208 pin TQFP (0.5mm pin spacing)
o   82C558E Peripheral Controller
    - 208 pin TQFP (0.5mm pin spacing)

82C602A RTC/Buffer Companion Chip
o   Integrated Real-Time Clock
o   Based on Benchmark Bq3285
o   256 bytes battery-backed memory
o   Integrates multiplexing/demultiplexing logic, latches, and 
    buffers
o   Eliminates most/all TTL in typical synchronous cache system
o   100 pin TQFP package (0.5mm pin spacing)
o   Also available in 100 pin PQFP
     
**82C566/7/8     Viper-Max Chipset Scalable MultiMedia PC Solution   ?...
**82C571/572     486/Pentium                                      c:93...
**82C576/7/8     Viper Xpress  [no datasheet]                        ?...
**82C576/8/9     Viper XPress+ [no datasheet, some info]     <01/16/97...
**82C596/597     PTMAWB Pentium Adaptive Write-back (Cobra)       c:93...
**82C650/1/2     Discovery (Pentium Pro) [no datasheet]              ?...
**82C681/2/6/7   386/486WB EISA                                   c:92...
**82C683         386/486AWB EISA [no datasheet]                      ?...
**82C693/6/7     Pentium uP Write Back Cache EISA                 c:93...
**82C700         FireStar                                         c:97...
**82C701         FireStar Plus                                    c:97...
**82C750         Vendetta      [no datasheet]                        ?...
**82c801         SCWB2 DX Single Chip Solution                    c:92...
**82C802         SCWB2 PC/AT Single Chip [no datasheet]              ?...
**82C802G/GP     System/Power Management Controller (cached)      c:93...
**82C895         System/Power Management Controller (cached)   c:Sep94...
**82C898         System/Power Management Controller (non-cache)c:Nov94...
**
**Support Chips:
**82C601/2       Buffer Devices                                 <Nov94...
**82C822         PCIB (VLB-to-PCI bridge)                         c:94...
**Other:...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
**Notes:
VLSI was originally known as VTI. 
see:
http://www.fundinguniverse.com/company-histories/vlsi-technology-inc-history/

**VL82C***              IBM/INTEL Direct replacement                 ?...
**VL82CPCAT-QC          AT 12 MHz 0/1 ws                           c88...
**VL82CPCPM-QC          AT 16 MHz 0/1 ws [no datasheet]            c88...
**VL82CPCAT-16QC/-20QC  AT 16 MHz or 20 MHz, 0/1 ws     +386SX     c89...
**VL82CPCPM-16QC/-20QC  AT 16 MHz or 20 MHz, Page-Mode  +386SX     c89...
**VL82C031/032/033      PS/2 Model 30-compatible chip set          c88...
**VL82C286-SET     TOPCAT 286/386SX PC/AT-Compatible Chip Set        ?...
**VL82C386-SET     TOPCAT 386DX PC/AT-Compatible Chip Set            ?...
**VL82C386sx-SET   TOPCAT 286/386SX PC/AT-Compatible Chip Set        ?...
**VL82C310         SCAMP-LT                                          ?...
**VL82C311         SCAMP-DT                                          ?...
**VL82C311L        SCAMP-DT 286                                      ?...
**VL82C312         SCAMP Power Management Unit (PMU)                 ?...
**VL82C315A        SCAMP II, Low-Power Notebook Chipset              ?...
**VL82C322A        SCAMP II, Power Management Unit (PMU)             ?...
**VL82C316         SCAMP II, PC/AT-Compatible System Controller      ?...
**VL82C323         SCAMP II, 5 Volt Power Management Unit (PMU)      ?...
**VL82C380         Single chip 386DX PC/AT Controller +on-chip cache ?...
**VL82C325             VL82C386SX System Cache controller            ?...
**VL82C335             VL82C386DX System Cache ctrl. [no d.sheet]    ?...
**VL82C315A/322A/3216  Kodiak 32-Bit Low-Voltage Chip Set            ?...
**VL82C420/144/146     SCAMP IV [no datasheet, some info]          c93...
**VL82C480         System/Cache/ISA bus Controller                   ?...
**VL82C481         System/Cache/ISA bus Controller                 c92...
**VL82C486         Single-Chip 486, SC486, Controller                ?...
**VL82C425         486 Cache controller                              ?...
**????????         Cheetah 486, PCI [no datasheet]                   ?...
**VL82C3216        Bus Expanding Controller Cache with write buffer  ?...
**VL82C521/522     Lynx/M                                            ?...
**VL82C530         Eagle Ð                                         c95...
**VL82C541/543     Lynx                                            c95...
**VL82C591/593     SuperCore 590                                   c94
***Notes:...
***Configurations:...
**VL82C594/596/597 Wildcat                                         c95...
**I/O Chips:
**VL82C106 Combination I/O chip                                      ?...
**VL82C107 SCAMP  Combination I/O chip                               ?...
**VL82C108 TOPCAT Combination I/O chip                               ?...
**VL82C110 Combination I/O chip                                      ?...
**VL82C113 SCAMP  Combination I/O chip                               ?...
**VL82C114 Combination I/O chip                                      ?...
**Video: ...
**Disk:...
**Modems:...
**Other:...
**Not sure if they actually exist...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...

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