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**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91
***Notes:...
***Info:...
***Features:...
**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...
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**82C802G/GP     System/Power Management Controller (cached)      c:93
***Notes:
Green version of the 82C802.  Supports cached 486 systems running from
20 MHz to  50 MHz. Also supports write-back cache and  VESA LB. PCI is
also supported via the 82C822 bridge chip.

This  is an  amalgamation of  two different  datasheets, the  802G and
802GP. There is very little difference, see the features section.

***Info:...
***Configurations:...
***Features:...
**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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*Unresearched:...
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*VLSI...
**VL82C380         Single chip 386DX PC/AT Controller +on-chip cache ?
***Info:...
***Configuration:...
***Features:
o   Highly integrated system solution using VL82C380 single-chip 
    ISA controller, VL82C113A Combination I/O chip and 3 TTLs
o   Supports one- or two-bank write-back cache
    - External TAGs
    - 32 Kbyte to 1 Mbyte cache size
    - 0 or 1 wait state writes
    - Separate dirty RAM not required; first write to clean, valid 
      line sets dirty bit 
o   Caches main system DRAM only
o   Maintains full coherency during DMA/MASTER mode cycles
o   Optional remap of video and hard disk ROM BIOS onto motherboard, 
    allowing use of single BIOS ROM
o   Optional bus acceleration for video accesses, with programmable 
    address regions
o   Software-configurable
o   Utilizes proven 8254, 8237, 8259 megacalls used in all previous
    VLSI Technology PC/AT chipsets
o   High-performance memory controller:
    - One wait state red up to 33 MHz, Zero wait state reads up to 
      40 MHz
    - Automatic configuring of Bank start address
    - Each bank individually configurable for any supported DRAM type
    - shadow RAM support form 640K to 1M in 16K segments
    - Staggered refresh reduces power supply peak currents
    - Decoupled-mode refresh improves performance
    - Programmable refresh frequency for support of slow-refresh DRAMs
    - Up to 64 Mbytes of motherboard memory in one to four banks using
      256K, 1M, and/or 4Mbit DRAM, all motherboard memory is cacheable
    - Direct-drive up to 2 banks (32 Mbyte) of motherboard memory
    - Two-way page mode interleave
    - Supports 32-bit ini-interleaved or interleaved configurations
    - Programmable RAS/CAS timing supported for Cycle-start, Trp, 
      Trcd, and Tacs

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