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**82498/493   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94
***Notes:
Date source: 1995_Intel_Pentium_Processors_and_Related_Components.pdf

Information taken from: 
            1995_Intel_Pentium_Processors_and_Related_Components.pdf*
                                         8249x Cache controllers.pdf**
>*  Datasheet dated Nov'94
>** Datasheet undated, whole document dated '95

The info and features section have  been solely sourced from the first
source.   The  second source  provides  far  more detail.   Additional
information in  the configurations section  has been sourced  from the
second.

Difference to 82497/492 is this supports 1 Mbyte to 2 Mbyte cache.

***Info:...
***Configurations:...
***Features:...
**
**Later chipsets (basic spec):
**440 series:
***440FX (Natoma)       05/06/96...
***440LX (Balboa)       08/27/97...
***440BX (Seattle)      c:Apr'98...
***440DX (?)            c:?...
***440EX (?)            c:Apr'98...
***440GX (Marlinespike) 06/29/98...
***440ZX & 440ZX-66 (?) 01/04/99...
***440ZX-M (?)          05/17/99...
***440MX (Banister)     05/17/99...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
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**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: ...
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**Other:...
**Not sure if they actually exist...
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