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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...
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*OPTi...
**82C391/392     386WB PC/AT Chipset (386DX)                    <Dec90
***Info:
The OPTi-386WB is a highly integrated PC/AT VLSI chipset, for the high
end  386-based  AT  systems.   It includes  System  Controller  (SYSC,
82C391),   Data  Buffer  Controller   (DBC,  82C392)   and  Integrated
Peripheral Controller (82C206). It is designed for system running from
25 Mhz, 33 Mhz and up to 40 Mhz.

SYSC integrates  the write-back  cache controller, local  DRAM control
logic  AT bus  and CPU  interface  circuitry.  DBC  includes the  data
buffers, AT bus control, decoding logic for keyboard controller, reset
and clock generation logic.

A high performance 386-based system can be implemented easily with 386
WB PC/AT chipset.

***Configurations:...
***Features:...
**82C461/462     Notebook PC/AT chipset [no datasheet]               ?...
**82c463         SCNB Single Ship Notebook                        c:92...
**82c465MV/A/B   Single-Chip Mixed Voltage Notebook Solution    <Oct97...
**82C481?/482?   HiP/486 & HiB/486 [no datasheet]                Oct89...
**82C491/392     486WB PC/AT Chipset                         <04/21/91...
**82C493/392     486SXWB                                     <10/21/91...
**82C495SX/392SX LCWB PC/AT chipset [no datasheet]                   ?...
**82C495SLC      DXSLC 386/486 Low Cost Write Back                c:92...
**82C495XLC      PC/AT Chip Set                                   c:93...
**82c496A/B      DXBB PC/AT Chipset                             <Mar92...
**82C496/7       DXBB PC/AT Chipset (Cached)                 <01/16/92
***Info:...
***Configurations:...
***Features:
o   386 and 486 CPU interface
o   Isolates the CPU bus from Local bus, more reliable system
    operation at high speed
o   Asynchronous handshaking between CPU bus and Local bus; fixed 
    base-board speed with upgradeable CPU card speed
o   Direct map write back cache with one level write buffer and
    16-byte line size
o   Programmable 2-1-1-1, 3-1-1-1, 2-2-2-2 or 3-2-2-2 burst read cycle
o   Programmable cache write hit 0 or 0 wait state
o   Optional Dirty bit
o   Supports 32K - 256K cache size for 386 cache system
o   Supports 64K - 512K cache size for 486 cache system
o   Provides TAG and Dirty RAM test capability
o   Built-in TAG auto-invalidation circuitry
o   Two programmable non-cacheable regions
o   Option for write-protected, cacheable Video BIOS
o   Cacheable AT bus memory space
o   8042 emulation for fast CPU-reset and gate A20 generation
o   1X clock source support for systems from 16 MHZ to 50 MHZ
o   160-pin plastic quad flat package

**82C498         DXWB PC/AT chipset [no datasheet]                   ?...
**82C499         DXSC DX System Controller                        c:93...
**82C546/547     Python PTM3V                                     c:94...
**82C556/7/8     Viper [no datasheet]                                ?...
**82C556/7/8N    Viper-N  Viper Notebook Chipset             <05/25/95...
**82C556M/7M/8E  Viper-N+ Viper Notebook Chipset                  c:96...
**82C566/7/8     Viper-Max Chipset Scalable MultiMedia PC Solution   ?...
**82C571/572     486/Pentium                                      c:93...
**82C576/7/8     Viper Xpress  [no datasheet]                        ?...
**82C576/8/9     Viper XPress+ [no datasheet, some info]     <01/16/97...
**82C596/597     PTMAWB Pentium Adaptive Write-back (Cobra)       c:93...
**82C650/1/2     Discovery (Pentium Pro) [no datasheet]              ?...
**82C681/2/6/7   386/486WB EISA                                   c:92...
**82C683         386/486AWB EISA [no datasheet]                      ?...
**82C693/6/7     Pentium uP Write Back Cache EISA                 c:93...
**82C700         FireStar                                         c:97...
**82C701         FireStar Plus                                    c:97...
**82C750         Vendetta      [no datasheet]                        ?...
**82c801         SCWB2 DX Single Chip Solution                    c:92...
**82C802         SCWB2 PC/AT Single Chip [no datasheet]              ?...
**82C802G/GP     System/Power Management Controller (cached)      c:93...
**82C895         System/Power Management Controller (cached)   c:Sep94...
**82C898         System/Power Management Controller (non-cache)c:Nov94...
**
**Support Chips:
**82C601/2       Buffer Devices                                 <Nov94...
**82C822         PCIB (VLB-to-PCI bridge)                         c:94...
**Other:...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
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