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**82489DX       Advanced Programmable Interrupt Controller    10/12/92
***Notes:...
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**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...
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**?????  (Profusion)    c:99...
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*OPTi...
**82C898         System/Power Management Controller (non-cache)c:Nov94
***Notes:...
***Info:
Overview
The 82C898 provides a highly integrated solution for fully compatible,
high performance PC/AT platforms. The 82C898 supports 486SX/DX/DX2/DX4
and  P24T  microprocessors  in  the  most  cost  effective  and  power
efficient designs  available today. For  high-end system applications,
this  device offers  optimum  performance for  systems  running up  to
50MHz.  

Based  fundamentally  on  OPTi’s   proven  82C801  and  82C802  design
architectures,  the 82C898 adds  additional memory  configurations and
extensive  power  management  control  for  the  processor  and  other
motherboard components.

The 82C898  supports the latest  in write-back processor  designs from
Intel, AMD, and Cyrix, as well as supporting the AT bus and VESA local
bus  for compatibility  and performance.  It also  includes  an 82C206
Integrated Peripherals Controller (IPC),  all in a single 208-pin PQFP
(Plastic Quad Flat Pack) for low cost.

Power Management
Figure  2-1   [see  datasheet]  exemplifies  the   flexibility  of  an
82C898/82C602-based designs GREEN strategy.  System designs can easily
accommodate both  SLe and non-SLe  CPUs.  If  an Intel non-SLe  CPU is
used, SMI#, SMIAOT#, and FLUSH# are no connects. One design can easily
accommodate  both  types  of   processors  with  minimal  changes  for
upgrades.

***Configurations:...
***Features:...
**
**Support Chips:
**82C601/2       Buffer Devices                                 <Nov94...
**82C822         PCIB (VLB-to-PCI bridge)                         c:94...
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*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
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*TI (Texas Instruments)...
**TACT82S411  Snake+ Single-Chip AT Controller [no datasheet]      c91
***Notes:
from: 
http://www.cbronline.com/news/ti_announces_the_tact82s411_chip_implementation/

"Texas Instruments Inc has announced the TACT82S411, a new single chip
implementation of all the support  circuitry surrounding the CPU in an
AT-alike, operating at  up to 20MHz for 80286  and 80386SX laptops and
notebooks:  the  new  chip   will  integrate  system  logic  and  most
peripheral  functions,  including   interrupt  controller,  timer  and
real-time clock, so that only  seven logic devices, as well as memory,
processor  and math  co-processor are  needed  on a  80286 or  80386SX
motherboard;  the  chip  features  128-byte  CMOS  configuration  RAM,
two-way and  four-way page interleave  mode with 64Kb, 256Kb,  1Mb and
4Mb dynamic  RAM, and support for  up to 32Mb  memory; sampling starts
this month, with volume in the fourth quarter. "

**TACT83000   AT 'Tiger' Chip Set (386)                            c89...
**TACT84500   AT Chip Set (486, EISA) [no datasheet, some info]    c91...
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