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**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
***Notes:...
***Info:...
***Configurations:...
***Features:...
**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...
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**5571           (Trinity) Pentium PCI/ISA Chipset (75MHz)   <12/09/96
***Info:...
***Configurations:...
***Features:...
**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...
**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]         ?
***Notes:...
**5595       Pentium PCI System I/O                          <12/24/97
***Notes:...
***Info:...
***Versions:...
***Features:
o   Integrated PCI-to-ISA Bridge
    − Translate s  PCI Bus Cycles into ISA Bus Cycles.   
    − Translate s ISA Master or DMA Cycles into PCI Bus Cycles.
    − Provide s a Dword Post Buffer for PCI to ISA Memory cycles.
    − Two 32 bit Prefetch/Post Buffers Enhance the DMA and ISA 
      Master Performance.
    − Fully Compliant to PCI 2.1.
o   Supports both Desktop and Mobile Advanced Power Management Logic
    − Meets ACPI 1.0 Requirements.
    − Supports Both ACPI and Legacy PMU.
    − Supports Suspend to RAM.
    − Supports Suspend to Hard Disk.
    − Optionally Tri−state ISA bus in low power state.
    − Supports Battery Management and LB/LLB/AC Indicator.
    − Supports CPU's SMM Mode Interface.
    − Supports CPU Stop Clock.
    − Supports Power Button of ACPI.
    − Supports three system timers and SMI# watchdog timer.
    − Supports Automatic Power Control.
    − Supports Modem Ring−in, RTC Alarm Wake up.
    − Supports Thermal Detection.
    − Supports GPIOs, and GPOs for External Devices Control.
    − Supports Programmable Chip Select.
    − Supports PCI Bus Power Management Interface Spec. 1.0
    − Supports Pentium II Sleep State.
o   Enhanced DMA Functions
    − 8-, 16- bit DMA Data Transfer.
    − Two 8237A Compatible DMA Controllers with Seven Independent
      Programmable Channels.
    − Provide the Readability of the two 8237 Associated Registers.
    − Support Distributed DMA.
    − Support PC/PCI DMA.
    − Per DMA channel programmable in legacy, DDMA or PC/PCI DMA mode
      operation.
o   Integrated Two 8259A Interrupt Controllers
    − 14 Independently Programmable Channels for Level-  or Edge-
      triggered Interrupts.
    − Provide the Readability of the two 8259A Associated Registers.
    − Support Serial IRQ.
    − Support the Reroutability for the PCI Interrupts.
o   Three  Programmable 16-bit Counters compatible with 8254
    − System Timer Interrupt.
    − Generate Refresh Request.
    − Speaker Tone Output.
    − Provide the Readability of the 8254 Associated Registers.
o   Integrated Keyboard Controller
    − Hardwired Logic Provides Instant Response.
    − Supports PS/2 Mouse Interface.
    − Supports Keyboard Password Security or Hot Key Power On 
      Function.
    − Supports Hot Key "Sleep" Function.
    − Programmable Enable and Disable for Keyboard Controller and 
      PS/2 Mouse.
o   Integrated Real Time Clock(RTC) with 256B CMOS SRAM
    − Supports ACPI Day of Month Alarm/Month  Alarm.
    − Supports various Power Up events, such as Button Up, Alarm Up, 
      Ring Up, GPIO5/PME0# Up, GPIO10/ PME1# Up, Password Security Up, 
      and Hotkey Up.
    − Supports various Power Down Events, like Software Power-down, 
      Button Power-down, and ACPI S3 Power-down.
    − Supports Power Supply ’98.
    − Provides RTC year 2000 solution.
o   Integrated Frequency Ratio Control Logic for Pentium II CPU
o   Universal Serial Bus Host Controller
    − Open HCI Host Controller with Root Hub.
    − Two USB Ports.
    − Supports Legacy Devices.
    − Supports Over Current Detection.
o   Integrated Hardware Monitor Logic
    − Up to 5 Positive Voltage Monitoring Inputs.
    − Two Fan Speed Monitoring Inputs.
    − One Temperature Sensings.
    − Supports thermister- or diode- temperature sensing for Pentium 
      II CPU.
    − Threshold Comparison of all Monitored  Values.
o   Supports I2C Serial Bus/ SMBUS 
o   Supports 2MB Flash ROM Interface
o   208  pins PQFP Package
o   5V CMOS Technology

**950        LPC I/O                                         <07/16/99...
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