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**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...
**85C471/407     Green PC ISA-VLB 486 Single Chip                  <94
***Info:
The  SiS85C47l, single chip  controller supports  Intel's 80486DX2/DX/
SX/SL Enhanced,  P24D/P24T/P24C CPU,  Cyrix's Cx486S2 (M6/M7)  CPU and
AMD's Am486DXL/DXLZ CPU.

The Si885C471 is a high performance, 100% PC/AT compatible single chip
controller,  designed for  cached/non-cached P24D/P24T/P24C,  M6/M7 or
486 PC systems. The high integration of the powerful cache controller,
the DRAM controller, the CPU  interfaces, the bus controller, the data
buffers and the peripheral controllers provides an easy and economical
solution for compact board manufacturing.

In addition to supporting burst reads  for the cache line fills of the
CPU, the  SiS85C47l is  capable of accepting  burst write data  of the
CPU's internal  cache dirty line(s) during CPU  write-back cycles. The
support of the  CPU burst write cycle is  optional through the control
of the Configuration Registers.  The SiS85C471 supports the cache size
up to l MB and the DRAM size up to 128 MB.

The SiS85C471  has a built-in  cache controller which  supports direct
mapped write-through/write-back  cache. The programmable  AT-bus clock
supports are compatible with  AT-bus timing requirements for different
PC systems.

In  addition, the  local bus  interfaces, the  integration of  the DMA
Controllers, Interrupt Controllers and Timers/Counters are designed to
be a higher performance, more compact, and more cost-effective product
for  a P24D/PZ4T/PZ4C,  486SX/DX/DX2/SL-Enhanced, Am486DXL/DXLZ,  or a
Cx48682 (M6/M7) PC/AT system.

The  SiS85C47I  provides power  saving  features  to allow  a  system,
through the  control of BIOS, to  reduce the CPU clock  frequency from
50MHz down to 0 MHz(STOP CLOCK) when the system is idle.

To support the SL-Enhanced  486, M6/M7, P24D/P24T/P24C's Am486DXL/DXL2
STPCLK/SMI features,  the SiS85C47l also implements  the corresponding
logics to support STPCLK /SMI for power saving.

The  SiSSSC471  supports the  VL-Bus  applications  including (1)  CPU
accesses VL-Bus  targets, (2) VL-Bus master  mode, and (3)  DMA or ISA
master accesses VL-Bus targets.

The  SiS85C471  provides  flexible  ways  in  configuring  the  system
depending   on  whether   cache  or   VESA  local   bus   masters  are
supported. The  different configurations require  different numbers of
external components.


***Configurations:...
***Features:...
**85C496/497     486-VIP 486 Green PC VESA/ISA/PCI Chipset         <95...
**85C501/502/503 Pentium/P54C PCI/ISA Chipset                <01/09/95...
**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
***Info:...
***Configurations:...
***Features:...
**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...
*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...
**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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