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**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...
**HT18          80386SX Single Chip                            c:Sep91
***Info:
The HT18  is an advanced PC/AT compatible,  single-chip 80386SX design
solution. This  highly integrated single chip allows  simple, low cost
system  design options  while  featuring high  performance, low  power
consumption,  and minimum board  space requirements.   Advanced memory
management features  include support  for page mode,  with 2  or 4-way
interleaving  in both pipelined  and non-pipelined  modes(18A/B only).
Extended Hardware EMS  options include dual sets of  32 registers with
multiple context operation. Revisions A/B support 256K and 1M DRAMs in
1 by 1,  1 by 4, and 1  by 9 device configurations. Rev  C supports 4M
devices, as well.  A Shadow RAM  option for System Video BIOS and dual
or single system ROM BIOS support adds to overall design versatility.

A  complete PC/AT  compatible  system with  advanced  features may  be
implemented with minimal external support logic. The HT18 performs all
CPU  and peripheral support  functions in  a single  chip.  Integrated
device  functions include  DMA Controllers,  a Memory  Mapper, Timers,
Counters, Interrupt  Controllers, a Bus Controller  and all supporting
circuitry for PC core logic requirements. An asynchronous AT Bus clock
allows  for a  constant 8MHz  Bus clock  rate for  highest  bus device
compatibility as defined in IEEE Spec P996. This device is packaged in
a 208-pin  Plastic Quad Flat  Pack combining several  external buffers
into this space saving solution.

***Configurations:...
***Features:...
**HT21          386SX/286 Single Chip (20 MHz)                 c:Aug91...
**HT22          386SX/286 Single Chip (25 MHz)                 c:Sep91...
**HT25          3-volt Core Logic for 386SX                    c:Dec92...
**HT35          Single-Chip Peripheral Controller [partial info]     ?...
**HTK320        386DX Chip Set                                 c:Sep91...
**HTK340        "Shasta" 486 Chip Set                          c:Jun92...
**Support Chips:
**HT44          Secondary Cache                                c:Jun92...
**Other:...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
**VL82C316         SCAMP II, PC/AT-Compatible System Controller      ?
***Info:...
***Configurations:...
***Features:
o   Compatible with 386SX-based PC/AT compatible systems
o   Up to 33 MHz system clock
o   Replaces 11 peripheral devices on the motherboard:
    - Two 82C37A DMA controllers
    - 74LS612 memory mapper 
    - Two 82C59A interrupt controllers
    - 82C54 timer
    - 82284 clock generator and ready interface
    - 82288 bus controller
    - Keyboard Controller
    - Real-time clock
o   Includes:
    - Memory/refresh controller
    - Port B and NMI logic
    - Bus steering logic
    - Parity generation checking logic
    - Turbo Mode control logic
    - Staggered refresh to minimize power supply load variations
    - Three-state control pin for board level testability
o   Supports:
    - Up to 16 MB system memory
    - PCMCIA 1.0 IC Memory Card mapping logic
    - VL82C325 (SX) Cache Controller compatible
    - Four 16- or 18-bit wide banks of 256K, 1M, or 4M DRAM or eight
    - 16-bit wide banks of 512K x 8 DRAM
    - Shadow RAM in 640K to 1M range
    - 387SX numeric coprocessors
    - 8- or 16-bit wide BIOS ROMs
    - Synchronous or asynchronous slot bus operation up to 16 MHz
    - Relocation of video and slot ROMs
o   Power saving features include:
    - Sleep and Suspend Modes
    - Slow DRAM refresh
    - CAS-before-RAS and Self-Refresh
    - Sleep Mode refresh switch to 32 kHz clock
    - Leakage Control in Stop Clock or Suspend Mode
    - CPU on or off option in Suspend Mode
    - Low-power page interleave memory mode
    - Fully static operation
    - DMA power management mode
    - Full SMM (system Management Mode) and I/O breal support
    - Supports standard Sleep Mode for interface to the VL82C323
      Power Management Unit (PMU) or other third party PMUs
    - Programmable, extendable peripheral cycle
    - Disable software coprocessor reset option
    - Option for automatic bus speed-up on video or PCMCIA accesses
    - Full support for local bus peripherals
    - Separate power pins for ISA bus signals allows ISA to be powered
      down independently of other interfaces
o   Other advanced features:
    - Programmable I/O decode for 10 or 16-bit addresses
    - Hardware configurable setup to minimize custom BIOS requirements
    - Programmable drive current to reduce ringing on DRAM
o   0.8-micron CMOS technology
o   208-lead metric quad flat pack (MQFP)


**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: ...
**Disk:...
**Modems:...
**Other:...
**Not sure if they actually exist...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...

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