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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...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
**85C501/502/503 Pentium/P54C PCI/ISA Chipset                <01/09/95
***Notes:...
***Info:...
***Configurations:...
***Features:...
**5101/5102/5103 Pentium/P54C PCI/ISA Chipset                <04/02/95...
**5120           Pentium PCI/ISA Chipset (Mobile)            <01/28/97...
**5501/5502/5503 Pentium/P54C PCI/ISA Chipset                <04/02/95...
**5511/5512/5513 Pentium PCI/ISA                             <06/14/95...
**5571           (Trinity) Pentium PCI/ISA Chipset (75MHz)   <12/09/96...
**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...
**Other:...
**PII/III/Pro...
**Athlon etc...
*Symphony...
*TI (Texas Instruments)...
*UMC...
**UM82C***     (IBM/INTEL Direct replacement)                      c87
Note:  Dates vary  for when  these  chips were  first available.   Two
databooks have been used one from  '86 the other from '91. Not all the
chips  are  listed  in  the  '86  databook, the  date  of  '87  is  an
assumption.

PC/XT:
IBM:	      UMC:	  Desc:
Intel 8284    UM82C84A    25MHz CMOS Clock Generator and Driver
Intel 8288    UM82C88     Bus Controller
Intel 8259    UM8259A     Programmable Interrupt Controller also UM82C59A-2 (CMOS version)
Intel 8237    UM8237A     3-5MHz Programmable DMA Controller (DMAC)
Intel 8253    UM8253*2    2.6-5MHz Programmable Interval Timer
Intel 8255    UM82C55A*   Programmable Peripheral Interface

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

Note: *2  indicates:   The   UM8253   can   be   replaced   with   the
      UM82C54/-2. The datasheet says it is a superset of the 8253, and
      works up to 10MHz. Also it's compatible with the 8254.  AT: IBM:
      UMC: Desc: Intel 82284  UM82C284* 10-12.5MHz Clock Generator and
      Ready Interface Intel 82288  UM82C288* 10-12.5MHz Bus Controller
      Intel 8254  UM82C54/-2 8-10MHz CMOS Programmable  Interval Timer
      Intel  8259  UM8259A   Programmable  Interrupt  Controller  also
      UM82C59A-2 (CMOS version) Intel 8237 UM8237A 3-5MHz Programmable
      DMA Controller (DMAC) 74LS612 UM74HCT612* Memory Mapper MC146818
      RTC  UM82C6818* Real-Time  Clock (RTC)  Intel 8047  ??  Keyboard
      Controller

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

**UM82C088     PC/XT Integration Chip                              <91...
**UM82C230     286AT MORTAR Chip Set                               <91...
**UM82C210     386SX/286 AT Chip Set                               <91...
**UM82C3xx     Twinstar & UM82C336F/N & UM82C39x [no datasheet]      ?
***Notes:...
**UM82C380     386 HEAT PC/AT Chip Set                             <91...
**UM82C480     386/486 PC Chip Set                                 c91...
**UM82C493/491 ??????????????? [no datasheet]                        ?...
**UM8498/8496  486 VL Chipset  "Super Energy Star Green"[no dsheet]c94...
**UM8881/8886  HB4 PCI Chipset "Super Energy Star Green"[no dsheet]c94...
**UM8890       Pentium chipset [no datasheet]                        ?...
**
**Support Chips:
**UM82152      Cache Controller (AUStek A38152 clone)              <91...
**UM82C852     Multi I/O For XT                                    <91...
**UM82C206     Integrated Peripheral Controller                    <91...
**UM82c45x     Serial/Parallel chips                                 ?...
**Other chips:...
*Unresearched:...
*VIA...
*VLSI...
**VL82C286-SET     TOPCAT 286/386SX PC/AT-Compatible Chip Set        ?
***Info:
The TOPCAT  286/386SX chip set  from VLSI  Technology, Inc. is  a very
high-integration chip  set for use  in the design  of PC/AT-compatible
based systems. This  chip set is intended for use  in 80286 or 80386SX
microprocessor-based systems with clock speeds from 12 to 25 MHz.

The TOPCAT  286/386SX chip set  provides design engineers with  a very
flexible, high-  performance, low-cost  board design solution  for IBM
PC/AT-compatible desktop, laptop, portable, and hand-held computers.

The TOPCAT  286/386SX two-device chip  set has been designed  with the
highest  integration  consistent  with economic  and  reliable  system
design. It provides a complete board design using only four non-memory
devices including the microprocessor.

VLSI's TOPCAT 286/386SX chip set was designed with seven goals.
o   Lowest system board cost
o   Smallest board area requirement
o   Highest performance in both cached and non-cached systems
o   Single board design for:
    - 12 to 15 MHz operation
    - Cache or non-cache
    - 512K byte to 32M byte memory using 256K, 1M and 4M bit DRAM
    - Laptop or desktop applications
o   Full hardware LIM EMS 4.0 support for highest possible performance
o   Built-in, in-circuit test modes for easy board level testing 
o   The VL82C320A interfaces to the VL82C335 "look-aside" Cache 
    Controller


With VLSI's  TOPCAT 286/386SX chip set,  you can be  assured that your
high-performance system design needs are met.

The  VL82C320/VL82C320A  contains  the  System Control  and  the  Data
Buffering functions in a 160-lead quad flatpack. The System Controller
is designed to perform in  80286- and 80386SX-based systems with clock
speeds of 25 MHZ and below, and peripheral bus speeds up to 12MHz. The
System  Controller functions  are  highly programmable  via  a set  of
internal   configuration  registers.   Defaults  on   reset   for  the
configuration  registers mimic the  compatibility requirements  of the
original  IBM PC/AT  as closely  as possible.   The  power-up defaults
allow any  possible configuration of the  system to boot  at the CPU's
rated speed.

The  System  Controller  handles  system board  refresh  directly  and
controls the timing of slot bus  refresh that is actually performed by
the VL82C331 ISA  Bus Controller. Refresh may be  performed in coupled
or decoupled mode. The former method is the standard PS/AT- compatible
mode where  on- and off-board  refreshes are independent. Both  may be
programmed for independent, slower than  normal rates. This allows the
use of low-power, slow  refresh DRAMs. The VL82C320/VL82C320A controls
all timing  in both modes.  In all  cases, refreshes are  staggered to
minimize  power supply  loading and  attendant  noise on  the VDD  and
ground pins. In sleep mode, refresh switches to CAS before RAS refresh
for  maximum  power  savings.   the  physical banks  of  DRAM  can  be
logically  reordered   through  one   of  the   indexed  configuration
registers. this  DRAM remap option  is useful n  order to map  out bad
DRAM  banks allowing  continued  use  of a  system  until repairs  are
convenient. It also allows DRAM bank combinations not in the supported
memory maps to be logically moved into a supported configuration with-
out physically moving memory components.

The 160-lead  VL82C331 ISA  Bus Controller  provides the  functions of
DMA, page  address register, timer,  interrupt control, port  B logic,
slot bus  refresh address generation,  and real-time clock.   To avoid
problems  with sensitive  slot bus  add-in cards,  the Bus  Controller
features "Bus Quiet"  mode operation. when no valid  slot bus accesses
are occurring, none of the slot  bus data, addresses, or control lines
are driven.  Built-in "Sleep" mode  features work together with System
Controller special features  to provide a low-power  system idle state
for  extension of  battery  life in  portable,  laptop, and  hand-held
systems.  If  an  interrupt  occurs  due  to  an  external  source  or
dedicated, internal programmable timer,  the Vus Controller "wakes up"
and resumes normal operation.  The  DMA channels have been upgraded to
provide a superset  of AT functionality by allowing DMA  to the entire
23M byte  memory range of  the TOPCAT 286/386SX chip  set.  Additional
functionality is  provided via DMA  wait state, clock and  MEMR timing
programmability.

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

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