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**82379AB     System I/O-APIC (SIO.A)                           <Dec94
***Notes:...
***Info:...
***Versions:...
***Features:
o   Provides the Bridge between the PCI Bus and ISA Bus
o   100% PCI and ISA Compatible 
    - PCI and ISA Master/Slave Interface 
    - Directly Drives 10 PCI Loads and 6 ISA Slots 
    - Supports PCI at 25 MHz and 33 MHz 
    - Supports ISA from 6 MHz to 8.33 MHz
o   Enhanced DMA Functions
    - Compatible DMA Transfers 
    - 27-Bit Addressability 
    - Seven Independently Programmable Channels 
    - Functionality of Two 82C37A DMA Controllers
o   Integrated Data Buffers to Improve Performance 
    - 8-Byte DMA/ISA Master Line Buffer 
    - 32-Bit Posted Memory Write Buffer to ISA
o   Integrated 16-Bit BIOS Timer 
o   Non-Maskable Interrupts (NMI) 
    - PCI System Errors 
    - ISA Parity Errors
o   Four Dedicated PCI Interrupts 
    - Level Sensitive 
    - Can be Mapped to Any Unused Interrupt
o   Arbitration for ISA Devices
    - ISA Masters
    - DMA and Refresh
o   Arbitration for PCI Devices
    - Six PCI Masters Are Supported
    - Fixed, Rotating, or a Combination of the Two
o   Utility Bus (X-Bus) Peripheral Support
    - Provides Chip Select Decode
    - Controls Lower X-Bus Data Byte Transceiver
o   Integrates the Functionality of One 82C54 Timer
    - System Timer
    - Refresh Request
    - Speaker Tone Output
o   Integrates the Functionality of Two 82C59 Interrupt Controllers
    - 14 Interrupts Supported
    - Edge/Level Selectable Interrupts; Each Interrupt Individually 
      Programmable
o   Complete Support for SL Enhanced Intel486 CPU's
    - SMI# Generation Based on System Hardware Events
    - STPCLK# Generation to Power Down the CPU
o   Integrated I/O Advanced Programmable Interrupt Controller (APIC)


**82380       32-bit DMA Controller w/ Integrated Peripherals 02/01/87...
**82380FB/AB  PCIset: 82380FB Mobile PCI-to-PCI Bridge(MPCI2) 02/17/97...
**82384       Clock Generator and Reset Interface                  c86...
**82385       32-bit Cache Controller for 80386               09/29/87...
**82385SX     32-bit Cache Controller for 80386SX             01/25/89...
**82395DX     High Performance Smart Cache                    06/18/90...
**82395SX     Smart Cache                                     12/17/90
***Notes:...
**82396SX     Smart Cache                                     12/17/90...
**82485       Turbo Cache (and 485Turbocache)                      c90...
**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...
**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...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
**85C501/502/503 Pentium/P54C PCI/ISA Chipset                <01/09/95
***Notes:...
***Info:...
***Configurations:...
***Features:...
**5101/5102/5103 Pentium/P54C PCI/ISA Chipset                <04/02/95...
**5120           Pentium PCI/ISA Chipset (Mobile)            <01/28/97...
**5501/5502/5503 Pentium/P54C PCI/ISA Chipset                <04/02/95...
**5511/5512/5513 Pentium PCI/ISA                             <06/14/95...
**5571           (Trinity) Pentium PCI/ISA Chipset (75MHz)   <12/09/96...
**5581/5582      (Jessie)  Pentium PCI/ISA Chipset (75MHz)   <04/15/97...
**5591/5592/5595 (David)   Pentium PCI A.G.P. Chipset        <01/09/98...
**5596/5513      (Genesis) Pentium PCI Chipset               <03/26/96...
**5597/5598      (Jedi)    Pentium PCI/ISA Chipset           <04/15/97...
**530/5595       (Sinbad) Host, PCI, 3D Graphics & Mem. Ctrl.<11/10/98
***Info:...
***Configurations:...
***Features:...
**540            (Spartan) Super7 2D/3D Ultra-AGP Single C.S.<11/30/99...
**55x            SoC (System-on-chip)                        <03/14/02...
**
**Support chips:
**85C206     Integrated Peripheral Controller [no datasheet]         ?...
**5595       Pentium PCI System I/O                          <12/24/97...
**950        LPC I/O                                         <07/16/99...
**Other:...
**PII/III/Pro...
**Athlon etc...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...