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**VL82C031/032/033      PS/2 Model 30-compatible chip set          c88
***Notes:

There seems to be 2 versions of this chipset.
The earlier one from 1988 is described as a three-chip set consisting
of:
VL82C031/OTi-031 System controller
VL82C032/OTi-032 I/O Controller
VL82C033/OTi-033 Floppy disk Controller and Data Separator  
(OTi part numbers are the equivalent from Oak Technologies Inc.)

The later one from 1989 is described as a two-chip set consisting of:
VL82C031 System controller
VL82C032 I/O Controller
(Oak Technologies Inc. is no longer mentioned)

The text  below is  taken from  the 1989  description of  the chipset,
except where stated. It has been difficult to determine to what extent
they  differ.  However  the  'power-down mode'  functionality  of  the
VL82C031 is only mentioned in the later '89 description.

***Info:...
***Configurations:...
***Features:
VL82C031:
o   Supports 8088 or V30 CPU at 8 MHz or 10 MHz zero wait state 
    using 150 ns DRAMs
o   Generates programmable fast and normal timing for PC memory
o   Provides either DRAM or SRAM control
o   Supports up to 8M bytes of expanded memory
o   Supports 256K or 1M bit DRAMs on EMS memory
o   Arbitrates the system bus among the CPU, DMA, math coprocessor,
    and DRAM memory refresh cycles
o   Provides four channels of 8 MHz DMA as well as burst mode
o   RAM pin available to select static or dynamic memory interface
o   Power down mode for low power standby operation

VL82C032:
o   Controls Model 30-compatible system keyboard and mouse
o   Integrates the following functions on a single device:
    - 8253-compatible timer/counter
    - Dual 8250-compatible serial communications controller
    - Bidirectional parallel port controller
    - 8259-compatible interrupt controller
    - 58167-compatible real-time clock
o   Decodes subsystems for floppy disk, hard disk, and video
o   Provides chip select logic for serial/parallel ports, disk 
    controllers, and real time clock. 

VL82C033: (from the '88 version):
o   Provides a uPD765A-compatible floppy disk controller
o   contains a precision analog data separator
o   Integrates an internal phase comparator, and voltage controlled 
    oscillator (VCO)
o   Provides the system with three data rates:
    -250K bit-per-second
    -300K bit-per-second
    -500K bit-per-second

**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...
**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: ...
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**Other:...
**Not sure if they actually exist...
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