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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...
**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
Chips:         
Memory Access Controller (MAC)  
Data Interface Buffer (DIB)
CPUs:          8x P-III Xeon Oct
DRAM Types:    SDRAM PC100 2-way Interleave dual channel
Max Mem:       32GB
ECC/Parity:    ECC
AGP speed:     N/A
Bus Speed:     100
PCI Clock/Bus: 1/3 PCI-66/64



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*UMC...
**UM82C***     (IBM/INTEL Direct replacement)                      c87
Note:  Dates vary  for when  these  chips were  first available.   Two
databooks have been used one from  '86 the other from '91. Not all the
chips  are  listed  in  the  '86  databook, the  date  of  '87  is  an
assumption.

PC/XT:
IBM:	      UMC:	  Desc:
Intel 8284    UM82C84A    25MHz CMOS Clock Generator and Driver
Intel 8288    UM82C88     Bus Controller
Intel 8259    UM8259A     Programmable Interrupt Controller also UM82C59A-2 (CMOS version)
Intel 8237    UM8237A     3-5MHz Programmable DMA Controller (DMAC)
Intel 8253    UM8253*2    2.6-5MHz Programmable Interval Timer
Intel 8255    UM82C55A*   Programmable Peripheral Interface

Note: *  indicates: possible  compatibility, datasheet does  not state
      explicitly. YMMV.

Note: *2  indicates:   The   UM8253   can   be   replaced   with   the
      UM82C54/-2. The datasheet says it is a superset of the 8253, and
      works up to 10MHz. Also it's compatible with the 8254.  AT: IBM:
      UMC: Desc: Intel 82284  UM82C284* 10-12.5MHz Clock Generator and
      Ready Interface Intel 82288  UM82C288* 10-12.5MHz Bus Controller
      Intel 8254  UM82C54/-2 8-10MHz CMOS Programmable  Interval Timer
      Intel  8259  UM8259A   Programmable  Interrupt  Controller  also
      UM82C59A-2 (CMOS version) Intel 8237 UM8237A 3-5MHz Programmable
      DMA Controller (DMAC) 74LS612 UM74HCT612* Memory Mapper MC146818
      RTC  UM82C6818* Real-Time  Clock (RTC)  Intel 8047  ??  Keyboard
      Controller

Note: *  indicates: possible  compatibility, datasheet does  not state
explicitly. YMMV.

**UM82C088     PC/XT Integration Chip                              <91
***Info:...
***Configurations:...
***Features:
o   Fully IBM-PC/XT compatible
o   82C84 Clock generator with 2 clock-inputs to generate the CPU 
    clock. These are 14.318 MHz and 30 MHz which will support 4.77 MHz
    and 10 MHz CPU clocks with 1/3 duty cycle.
o   82C88 Bus Controller
o   82C37 4 channel DMA controller, channel is used for DRAM refresh
o   82C59 8 channel interrupt controller, level is used for system 
    time base, and level 1 for keyboard input 
o   82C53 3 channel timer, channel is used for system time base, 
    channel 1 for DRAM refresh, and channel 2 for speaker audio
o   82C55 Peripheral l/O r used for keyboard interface and system 
    configuration switch (same as the PC/XT)
o   74322 Keyboard interface, supports PC/XT type keyboard
o   74280 Parity check and generator
o   74670 4 bit page register for DMA
o   Wait state logic
o   NMI control logic
o   ROM decoder for one 2764 and one 27256
o   RAM decoder for 4164 or 41256 DRAM
o   H/W and S/W CPU speed change and indicator
o   Built-in delay line for RAS, CAS
o   Low power consumption: less than 300 mW at 10 MHz CPU speed
o   Small PCB size: 100 pin plastic Flat package

**UM82C230     286AT MORTAR Chip Set                               <91...
**UM82C210     386SX/286 AT Chip Set                               <91...
**UM82C3xx     Twinstar & UM82C336F/N & UM82C39x [no datasheet]      ?...
**UM82C380     386 HEAT PC/AT Chip Set                             <91...
**UM82C480     386/486 PC Chip Set                                 c91...
**UM82C493/491 ??????????????? [no datasheet]                        ?...
**UM8498/8496  486 VL Chipset  "Super Energy Star Green"[no dsheet]c94...
**UM8881/8886  HB4 PCI Chipset "Super Energy Star Green"[no dsheet]c94...
**UM8890       Pentium chipset [no datasheet]                        ?...
**
**Support Chips:
**UM82152      Cache Controller (AUStek A38152 clone)              <91...
**UM82C852     Multi I/O For XT                                    <91...
**UM82C206     Integrated Peripheral Controller                    <91...
**UM82c45x     Serial/Parallel chips                                 ?...
**Other chips:...
*Unresearched:...
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