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**A note on VESA support of 486 chipsets.
Many chipsets state  that they support VESA local  bus.  In some cases
these actually  implement VLB somewhat  like PCI, where it  is entirly
decoupled from the CPU bus. Chipsets  that do not state they work with
VLB,  may  be found  on  motherboards  that  contain VLB  slots.   VLB
is  *basically*  The 486  CPU  pinout in  a  slot  form. Unless  these
m/boards contain  some additional  chips, there VLB  implementation is
directly coupled to the CPU.

**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...
**82485       Turbo Cache (and 485Turbocache)                      c90
***Notes:...
***Info:...
***Versions:...
***Features:...
**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...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
**VL82C***              IBM/INTEL Direct replacement                 ?
PC/XT:
IBM:	      VLSI:	 Desc:
Intel 8284    VL82C84A	 8-10MHz 8086 and 8088 Clock Generator and Driver  
Intel 8288    VL82C88	 8-10MHz 8086 and 8088 Bus Controller
Intel 8259    VL82C59A	 8-10MHz CMOS Programmable Interrupt Controller
Intel 8237    VL82C37A	 5-8MHz	CMOS Direct Memory Access (DMA) Controller
Intel 8253    VL82C54A*	 8-10MHz CMOS Programmable Interval Timer 
Intel 8255    ??	 (Keyboard Controller)

Note: * indicates: The VL82C54A datasheet says it works with the 8086/
        8088, not sure if that means, the CPU or as IBM PC/XT compat-
        ible. YMMV.
AT:
IBM:	      VLSI:	 Desc:
Intel 82284   VL82C284*	 8-10MHz '286 Clock Generator and Driver (CMOS)
Intel 82288   VL82C288*	 6-8MHz  '286 Bus Controller (CMOS)
Intel 8254    VL82C54A*  8-10MHz CMOS Programmable Interval Timer 
Intel 8259    VL82C59A	 8-10MHz CMOS Programmable Interrupt Controller
Intel 8237    VL82C37A	 5-8MHz	CMOS Direct Memory Access (DMA) Controller
74LS612       VL82C612	 DMA address register (implemented with a 74LS612 IC)
MC146818 RTC  VL82C018*  RTC with ram 
Intel 8047    ??	 Keyboard Controller

Note: * indicates: possible compatibility, datasheet does not state
        explicitly. YMMV.

**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        ?
***Notes:...
**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)      ?
***Info:...
***Versions:...
***Features:...
**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...
**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:...