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**82497/492   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94
***Notes:...
***Info:
The 82497 Cache Controller and multiple 82492 Cache SRAMs combine with
the Pentium processor  (735\90, 810\100) to form a  CPU Cache chip set
designed for high performance servers and function-rich desktops.  The
high-speed interconnect between the  CPU and cache components has been
optimized to  provide zero-wait state  operation. This CPU  Cache chip
set  is fully  compatible with  existing  software, and  has new  data
integrity features for mission critical applications.

The 82497 cache controller implements the MESI write-back protocol for
full multiprocessing support. Dual  ported buffers and registers allow
the 82497  to concurrently  handle CPU bus,  memory bus,  and internal
cache operation for maximum performance.

The  82492 is a  customized high-performance  SRAM that  supports 32-,
64-, 128-bit wide memory bus widths, 16-, 32-, and 64-byte line sizes,
and optional sectoring.  The data path between the  CPU bus and memory
bus  is separated  by the  82492, allowing  the CPU  bus  to handshake
synchronously,  asynchronously,  or   with  a  strobed  protocol,  and
allowing concurrent CPU bus and memory bus operations.

***Configurations:...
***Features:...
**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)...
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*OPTi...
**82C681/2/6/7   386/486WB EISA                                   c:92
***Info:...
***Configurations:...
***Features:...
**82C683         386/486AWB EISA [no datasheet]                      ?...
**82C693/6/7     Pentium uP Write Back Cache EISA                 c:93...
**82C700         FireStar                                         c:97...
**82C701         FireStar Plus                                    c:97...
**82C750         Vendetta      [no datasheet]                        ?...
**82c801         SCWB2 DX Single Chip Solution                    c:92...
**82C802         SCWB2 PC/AT Single Chip [no datasheet]              ?...
**82C802G/GP     System/Power Management Controller (cached)      c:93...
**82C895         System/Power Management Controller (cached)   c:Sep94...
**82C898         System/Power Management Controller (non-cache)c:Nov94...
**
**Support Chips:
**82C601/2       Buffer Devices                                 <Nov94...
**82C822         PCIB (VLB-to-PCI bridge)                         c:94...
**Other:
OPTi 82C200  - ChromaCast LCD-VGA chipset
OPTi 82C205  - LCD panel controller / scalar
OPTi 82C264  - 2D VGA controller
OPTi 82C265  - Video ????????????????????????????
OPTi 82C268  - Video ????????????????????????????
OPTi 82C611  - EIDE VLB
OPTi 82C611A - EIDE VLB
OPTi 82C621  - PCI-to-IDE controller
OPTi 82C621A - PCI-to-IDE controller 
OPTi 82C824  - FireFox PCI to PCMCIA Controller
OPTi 82C825  - FireBridge II PCI to PCMCIA Controller
OPTi 82C814  - Docking Station Controller for laptops (PCI-to-PCI bridge)
OPTi 82C842  - PCI-to-IEEE 1393 FireWire
OPTi 82C832  - ?????????????????????????????????????????
OPTi 82C861  - PCI-to-USB Bridge   c1997
OPTi 82C862  - PCI-to-USB Bridge 4x port
OPTi 82C863  - PCI-to-USB Bridge 2x port
OPTi 82C871  - PCI-to-USB Bridge + Sound Blaster compatibility and USB 2.0
OPTi 82C916  - Audio, ISA, serial CODEC) used in combination with Vendetta chipset 82C750
OPTi 82C924  - Audio, ISA
OPTi 82C925  - ISA Audio Controller (replaces the 924)
OPTi 82C928  - (MAD16) ISA Audio Controller (Emulates Sound Blaster Pro) c1993
OPTi 82C929  - (MAD16 Pro) ISA Audio Controller (Emulates Sound Blaster Pro) c1994
OPTi 82C930  - ISA Audio Controller (Emulates Sound Blaster Pro, AdLib)
OPTi 82C931  - ISA Audio controller (Emulates Sound Blaster Pro, AdLib)
OPTi 82C933  - Audio ?????????????????????????????
OPTi 82C935  - EV1935 ECTIVA MachOne PCI Audio
OPTi 82C941  - Wavetable chip, has something to do with 82C930
OPTi 82C950  - (MAD32) Audio/Modem controller (Emulates Sound Blaster Pro) c1994
OPTi 92C160  - Clock Generator for 92C168
OPTi 92C168  - LCD VGA controller c1993
OPTi 92C178  - LCD VGA controller with blt c1993
OPTi 92C264  - 2D VGA controller 

-------------------------------------------------


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