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*Contaq  . . . . . [no datasheets, some info]...
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*Intel...
**82496/491     Cache Controller / Cache RAM (for P5 Pentium) 03/22/93
***Notes:
Date source: TimelineDateSort7_05.pdf

Information taken from: 
            1995_Intel_Pentium_Processors_and_Related_Components.pdf*
                                         8249x Cache controllers.pdf**

>*  Datasheet dated Oct'93
>** 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.

This  chip was  used on  the Pentium  66MHz CPU  complexes of  Intel's
Xpress platform.   Specifically the  BXCPUPENT66 (Single  66MHz, eight
82491s) and BXCPU2XPENT (Dual 66 MHz,  eight 82491s). Also found on P5
60/66MHz CPU complexes of IBM 9595/PC Server 300/500 systems.

***Info:...
***Configurations:...
***Features:...
**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...
**82C556/7/8N    Viper-N  Viper Notebook Chipset             <05/25/95
***Notes:...
***Info:...
***Configurations:...
***Features:...
**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...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
**VL82C312         SCAMP Power Management Unit (PMU)                 ?
***Info;...
***Versions:...
***Features:
o   Provides system activity monitoring, peripheral control, power 
    supply control, mode timers, and general purpose I/O for 
    laptop/notebook power management
o   Five operation modes:
    - On Mode
    - Doze Mode
    - Sleep Mode
    - Suspend Mode
    - Off Mode
o   Independent programmable timers for power saving modes
o   independent programmable timers for LCD and backlight control
o   Ten individual power control outputs
    - Three for LCD power
    - Seven general purpose for peripherals
o   Four "low battery" warning monitors: two standard and two 
    optional
o   Multiple power-on sources from Suspend/Off Mode:
    - Pushbutton
    - RTC alarm
    - Modem ring
o   AC power monitoring to disable PMU function
o   Refresh support in suspend Mode
o   Leakage control of outputs during Suspend Mode
o   wide range of LCD panel power-up/down sequencing
o   Ten general purpose I/O ports; eight with additional i/O 
    features:
    - one programmable blinking I/O
    - Two optional low battery inputs
    - three inputs AND/OR selectable I/O with one common GPIO output
o   Watchdog timer to turn off system power if low battery NMI is
    not serviced
o   Programmable NMI generation on:
    - PMU power mode
    - Low battery warning
    - External input
    - LCD panel timer
    - Reschedule Suspend Mode NMI by BIOS
o   Controls SCAMP's SLEEP pin
o   RTC alarm IRQ output pin for SCAMP
o   Additional logic included to minimize system board component 
    count
o   Provides chip selects for:
    - IDE interface
    - Floppy disk controller
    - VL16C452 serial/parallel I/O chip
o   Provides multiplexed address/data bus for VGA controller
o   Chip ID and revision register
o   144-pin MQFP low-power CMOS IC

**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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