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**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...
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**82C822         PCIB (VLB-to-PCI bridge)                         c:94
***Notes:...
***Info:...
***Versions:...
***Features:...
**Other:...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
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*TI (Texas Instruments)...
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*Unresearched:...
*VIA...
**VT82C597/AT  Apollo VP3, Single-Chip for Pentium with AGP  <10/03/97
***Info:...
***Configurations:...
***Features:...
**VT82C598MVP  Apollo MVP3,Single-Chip 66/75/83/100MHz & AGP <09/22/97...
**VT8501       Apollo MVP4,Single-Chip 66-100MHz & AGP       <11/04/98...
**VT82C680     Apollo P6, Pentium-Pro Chip Set               <08/30/96...
**Support chips:
**VT82C505     Pentium/486 VL to PCI Bridge                  <05/30/94...
**VT82C586/A/B PCI Integrated Peripheral Controller          <10/13/96
***Info:...
***Versions:...
***Features:
o   PC97 Compliant PCI to ISA Bridge
    - Integrated ISA Bus Controller with integrated DMA, timer, and 
      interrupt controller
    - Integrated keyboard controller with PS2 mouse support
    - Integrated DS12885 style real time clock with extended 128 byte 
      CMOS RAM
    - Integrated USB controller with root hub and two function ports
    - Integrated master mode enhanced IDE controller with enhanced PCI 
      bus commands
    - PCI-2.1 compliant with delay transaction
    - Four double-word line buffer between PCI and ISA bus
    - Supports type F DMA transfers
    - Fast reset and Gate A20 operation
    - Edge trigger or level sensitive interrupt
    - Flash EPROM, 2MB EPROM and combined BIOS support
    - Programmable ISA bus clock
o   Inter-operable with Intel and other Host-to-PCI Bridges
    - Combine with VT82C595 for a complete Pentium / PCI / ISA system 
      (Apollo VP2)
    - Combine with VT82C685/687 for a complete Pentium-Pro /PCI / ISA 
      system (Apollo P6)
    - Inter-operable with other Intel or non-Intel Host-to-PCI bridges 
      for a complete PC97 compliant PCI/ISA system
o   Enhanced Master Mode PCI IDE Controller with Extension to 
    UltraDMA-33
    - Dual channel master mode PCI supporting four Enhanced IDE 
      devices
    - Transfer rate up to 22MB/sec to cover PIO mode 4 and multi-word 
      DMA mode 2 drives and beyond
    - Extension to UltraDMA-33 / ATA-33 interface for up to 33MB/sec 
      transfer rate
    - Sixteen levels (doublewords) of prefetch and write buffers
    - Interlaced commands between two channels
    - Bus master programming interface for SFF-8038i rev.1.0 and 
      Windows-95 compliant
    - Full scatter and gather capability
    - Support ATAPI compliant devices
    - Support PCI native and ATA compatibility modes
    - Complete software driver support
o   Universal Serial Bus Controller
    - USB v.1.0 and Intel Universal HCI v.1.1 compatible
    - Eighteen level (doublewords) data FIFO with full scatter and 
      gather capability
    - Root hub and two function ports with integrated physical layer 
      transceivers
    - Legacy keyboard and PS/2 mouse support
o   Sophisticated Power Management
    - Normal, doze, sleep, suspend and conserve modes
    - System event monitoring with two event classes
    - One idle timer, one peripheral timer and one general purpose 
      timer
    - More than ten general purpose input and output ports
    - Seven external event input ports with programmable SMI condition
    - Complete leakage control when external component is in power off 
      state
    - Primary and secondary interrupt differentiation for individual 
      channels
    - Clock stretching, clock throttling and clock stop control
    - Multiple internal and external SMI sources for flexible power 
      management models
    - APM 1.2 compliant
    - Pin-compatible upgrade to VT82C586B for OnNow / ACPI (Advanced 
      Configuration and Power Interface) power-management support, 
      256-byte extended CMOS, Distributed DMA, and I2C capabilities
o   Plug and Play Controller
    - PCI interrupts steerable to any interrupt channel
    - Dual interrupt and DMA channel controllers for on-board plug and 
      play devices
    - Microsoft Windows 95 and plug and play BIOS compliant
o   Built-in Nand-tree pin scan test capability
o   0.5um mixed voltage, high speed and low power CMOS process
o   Single chip 208 pin PQFP

**VT82C596/A   Mobile PCI Integrated Peripheral Controller   <11/05/97...
**VT82C686A/B  PCI Super-I/O Integrated Peripheral Ctrl.     <02/10/98...
**Later P-Pro/II/III/Celeron...
**Later AMD...
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