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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
***Notes:...
***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...
**82C700         FireStar                                         c:97
***Info:...
***Configurations:...
***Features:
PCI Bus
o   PCI supports sustained X-1-1-1 bursts, even to DRAM through an 
    innovative mechanism. PCI operation can be concurrent with 
    CPU/L2 cache and IDE operations.
o   PCI clock generation eliminates the need for external PCI clock 
    buffers in many designs and allows the PCI bus to be effectively 
    power-managed.
o   3.3V or 5.0V PCI is supported on the FireStar PCI bus. If FireStar 
    is configured for 3.3V operation, 5.0V-only PCI plug-in cards and 
    docking stations can still be supported through a bridge device 
    such as OPTi's 820824 Cardbus Controller/Docking Solution, whose 
    prefetch and post-write buffers off-load operations from the 
    primary PCI bus.
DRAM Controller
o   Provides BIOS with the means to automatically detect the DRAM type 
    in use on each bank, whether fast page mode, EDO, or synchronous 
    DRAM, allowing BIOS routines to efficiently program DRAM 
    operation.
ISA Bus
o   A full ISA bus is directly provided to support the keyboard 
    controller, BIOS ROM, and Compact ISA peripheral devices for local 
    ISA support with no TTL. When reduced ISA operation is selected, 
    other FireStar pins become available for general purpose use.
Bus Mastering IDE
o   FireStar supports two bus mastering IDE channels that function 
    concurrently with operations on the CPU/L2 cache interface and PCI 
    interface. Up to four drives are supported.
o   An emulated bus mastering IDE feature allows IDE drives that are 
    not commonly available as bus mastering devices, such as CD-ROM 
    drives, to act as bus mastering drives. For example, a CD-ROM 
    drive can transfer video data to DRAM while the CPU is 
    decompressing the data and sending it to the graphics controller.
Thermal Management
o   Fail-safe thermal management incorporates feedback logic that 
    requires a very inexpensive external sensor circuit.
o   Hardware monitors temperature directly and reliably, while the 
    fail-safe aspect of the circuitry ensures that sensor component 
    failure will automatically inhibit CPU clocking to prevent 
    overheating.
o   SMM code will be able to read (and display if desired) actual CPU 
    temperature.
ACPI Implementation
o   Microsoft Advanced Configuration and Power Interface (ACPI) is 
    being implemented in the FireStar silicon. ACPI is a standard 
    register interface for power management function jointly developed 
    by Microsoft, Intel, and Toshiba.
Miscellaneous
o   The standard version of the chip can run at 3.3V, up to 66MHz on 
    the CPU bus.
o   A new Context Save Mode feature allows chip registers to be saved 
    and restored more efficiently than ever before, requiring less SMM 
    code and storage space.
o   The OPTi Viper-N+ Power Management Unit is used, maintaining 
    backward compatibility down to the register level with previously 
    written support firmware.
o   Serial IRQs are supported as an option for interrupts on PCI.
o   Known devices in the system can be positively decoded on the PCI 
    bus, eliminating the delay for subtractive decode and improving 
    the efficiency of ISA operations.
o   ISA bus cycle speed can be individually controlled to certain ISA 
    device groups.
o   Simple logic gate functions can be assigned to unused pins to 
    eliminate the need for external TTL. Pin programming is far more 
    flexible than ever possible on any other chip.


**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...
*Western Digital...
**Other Chips:
SYSTEMS LOGIC/PERIPHERAL DEVICES
WD16C451, WD16C551 - Enhanced Asynchronous Communications Element (ACE) with Parallel Port
WD16C452, WD16C552 - Dual Enhanced Asynchronous Communications Element (ACE)
WD16C550             Enhanced Asynchronous Communications Element (ACE) with FIFOs
WD76C10AlLP/LV       ISA-Based System Controller for 80386SX and 80286 Desktop and Portable Compatibles
WD76C20/LV   Floppy Disk Controller, Real Time Clock, IDE Interface, and Support Logic Device 
WD76C30/LV   Peripheral Controller, Interrupt Multiplexer, and Clock Generator Device
WD7710/LP    ISA-Based System Controller with Cache for 80386SX and 80286 Desktop and Portable Compatibles
WD7910/LP    ISA-Based System Controller with Cache for 80386SX and 80286 Desktop and Portable Compatibles

IMAGING DEVICES
ICS90C61A          Dual Video/Memory Clock Generator     
ICS90C63   	   Dual Video/Memory Clock Generator 
ICS90C64   	   Dual Video/Memory Clock Generator 
WD90C00	   	   VGA Controller (8514/A clone, max 1MB, 1024x768x16, 800x600x256)                     
WD90C01 	   8514/A for laptops
WD90C10 	   VGA, 256KB
WD90C11, WD90C11A  Enhanced VGA Controller (max 512KB, 1024x768x16, 800x600x256)
WD90C20, WD90C20A  VGA Flat Panel Display Controller (800x600x16, 640x460x256, 32 shades gray)
WD90C22            VGA Flat Panel Display Controller (800x600x16, 640x460x256, 64 shades gray)
WD90C24/A/A2       SVGA, max 1MB, 1280x1024x16, 1024x768x16, LCD, VESA-LB, 3.3 or 5V
WD90C26            VGA Flat Panel Display Controller
WD90C30 	   High Performance Video Controller (max 1MB, 1024x768x256, 1024x768x16)
WD90C31 	   Accelerator Video Controller (max 1MB, 1024x768x256, 1280x1024x16)
WD90C33            Same as WD90C31 but with, max 2MB, VESA-LB, 1280x1024x256, 1280x1024x16)
WD90C55            VGA LCD Interface
WD90C56            VLBI (Video Local Bus Interface), for WD90C30/31, VESA not mentioned. 
WD9710 		   Pipelined, 32bit core, 64bit RAM, 24bit RAMDAC, PCI/VLB
WD9712 		   similar to WD9710



STORAGE DEVICES
WD10C01A            Winchester Disk Controller
WD10C27	    	    Data Separator
WD33C92A    	    Enhanced SCSI Bus Interface Controller
WD33C93B            Enhanced SCSI Bus Interface Controller
WD33C95A, WD33C96A  Enhanced Single-ended and Differential SCSI Bus Interface Controller
WD37C65C  	    Floppy Disk Subsystem Controller Device 
WD42C22C 	    Winchester Disk Subsystem Controller Device
WD60C318 	    Optical Disk Drive Encoder/Decoder 
WD60C40A  	    Peripheral Cache Manager Device
WD60C80 	    Error Detection and Correction Chip (EDAC)
WD61C23A 	    High Performance Hard Disk Controller
WD61C40A 	    Peripheral Cache Manager Device
WD7000 		    ESDI Controller (16-bit ISA)
WD7193 		    Fast SCSI-II PCI adapter, 33C296A-ZX chip
WD7197 		    Fast Wide version of WD7193
WD7296A 	    Fast Wide SCSI-II (PCI?), possibly WD34C296 chip




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