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**82495DX/490DX DX CPU-Cache Chip Set                           <Sep91
***Notes:...
***Info:...
***Configurations:...
***Features:
o   50 MHz Intel486 DX CPU 
    - RISC Integer Core with Frequent Instructions Executing in One 
      Clock
    - 160 Mbyte/Sec Burst Bus
    - 41 Dhrystone MIPs
    - 11.5M Double Precision Whetstones/Sec.
    - On-Chip Cache and FPU
o   Highly Flexible
    - Supports 128 Kbyte and 256 Kbyte Configurations
    - Complete MESI Protocol Support
    - 32- or 64-Bit Memory Bus Width
    - Synchronous, Asynchronous, and Strobed Memory Bus Protocols
    - Variable Cache Line Sizes and Sectoring
    - Cache Data Parity Option
o   High Performance Second Level Cache
    - Two-Way Set Associative
    - Write-Back or Write Through Cache
    - Zero Wait State Cache Access
    - Concurrent CPU Bus, Memory Bus, and Internal Array Operation
o   Full Multiprocessing Support
    - Implements MESI Write-Back Cache Protocol
    - Low Bus Utilization
    - Automatically Maintains 1st Level Cache Consistency
    - Supports Read-for-Ownership, Write-Allocation, and Cache-to-
      Cache Transfers

**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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**Other chips:
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***Disk:

UM8272A/A-4   Floppy Disk Controller 4, 8 MHz Versions
UM82C776      ISA bridge
UM82C865F     Super I/O (May be compatible with SMC37C665GT)
UM82C862      ISA IDE controller
UM82C863F     VLB IDE controller
UM82C871F     VLB IDE controller 1 port
UM83C001      Hard Disk Controller For PC/XT H.D.C
UM83C002      RAM Buffer Controller
UM83C003      Hard Disk Controller Interface For PC/XT MFM H.D.C.
UM83C004      Hard Disk Controller Interface For PC/XT MFM/RLL H.D.C.
UM83C021      Hard Disk Controller For PC/AT H.D.C.
UM83C022      AT HDC Interface For PC/AT H.D.C.
UM8326/B      Floppy Disk Data Separator (FDDS) 4, 8 MHz Versions
UM8329/T/B/BT Floppy Disk Controller
UM8388        Single-Chip Floppy Disk Controller Special Design For IBM PC
UM8397        Single-Chip Floppy Disk Controller Design For IBM PC XT
UM8398        Single-Chip Floppy Disk Controller Special Design For IBM PC
UM8660        Super I/O?
UM8670        Super I/O
UM8672        EIDE controller VLB 2 ports
UM8672F       VLB IDE controller, LBA support
UM8673F       PCI EIDE controller
UM9228-1      Floppy Disk Controller

***Peripheral:...
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