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**82498/493   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94
***Notes:...
***Info:...
***Configurations:...
***Features:...
**
**Later chipsets (basic spec):
**440 series:...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
*Headland/G2...
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*OPTi...
**82C596/597     PTMAWB Pentium Adaptive Write-back (Cobra)       c:93
***Notes::...
***Info:
The  OPTi design  team  is  proud to  present  the  64-bit Pentium  AT
solution with  VESA Local bus. As  always, the product emphasis  is on
value. The OPTi  PTMAWB is crafted to provide  the highest performance
but most cost effective  system solution without compromising quality,
compatibility or reliability.

The  PTMAWB is a  top-of-the-line solution  for the  server/power user
market. Flexibility of design without using the most expensive support
parts has  been given  key importance. This  ensures the  total system
cost to be  at the high-end 486 level - yet  with the high-end Pentium
performance.

The PTMAWB has  the state-of-the-art AWB cache controller  for up to 2
MB  of Adaptive  Write-back cache  support. The  DRAM  controller also
supports posted writes for faster performance on write cycles.

The  OPTi  PTMAWB-V  provides  PC  servers  and  PC  power  users  the
horsepower of the 64-bit Pentium at 60 MHz and 66 MHz-immediately.


***Configurations:...
***Features:...
**82C650/1/2     Discovery (Pentium Pro) [no datasheet]              ?...
**82C681/2/6/7   386/486WB EISA                                   c:92...
**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:...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
**W83759/A/F/AF   Advanced VL-IDE Disk Controller                  <96
***Notes:...
***Info:...
***Versions:...
***Features:
o  Pin-to-pin backward compatible with W83759 VL-IDE Interface chip
o  VESA VL-Bus Rev 2.0 compatible, connects directly to local bus and 
   four IDE drives
o  Direct interface to various ANSI ATA/ATA-2/FAST ATA/IDE-2/Enhanced 
   IDE drives
o  Supports 32 and 16-bit data transfer
o  Fully software programmable for command active/recovery time and 
   address setup, data hold time
o  Built-in VL-Bus to 16-bit IO data buffer for special applications
o  Fully supports Enhanced IDE features, including Fast PIO, Mode 3/4, 
   IORDY flow control, prefetch control
o  Supports dual channels to allow up to four drives or non-disk 
   devices (ATAPI CD-ROM and tape drives)
o  Pipeline pre-fetched reads and posted writes for concurrent disk 
   and host operations
o  Independent access timing for all drives (primary/secondary and 
   master/slave)
o  All Enhanced IDE new features may be disabled/enabled via driver 
   or power-on setting by per drive selectability
o  ATA/Mode 0-4 PIO speed may be set as default timing of each drive 
   via power-on jumper setting
o  Supports slave DMA mode protocol (reserved)
o  Supports auto power-down, standby, suspend APM power management 
   state for green PCs
o  Primary and secondary channel can be independently enabled/disabled 
   by software or jumper setting
o  Supports drivers for DOS, Windows, OS/2, UNIX, and Netware
o  Packaged in 100-pin QFP

**W83769          Local Bus IDE Solution                           <94...
**
**UARTS:
**W86C250A  UART (equivalent of INS8C250A) [no datasheet]
**W86C450/P Universal Asynchronous Receiver/Transmitter         <Jul89...
**W86C451   I/O controller for IBM PC/AT/XT                     <Jul89...
**W86C452   I/O controller for IBM PC/AT                         Jul89...
**W86C456   I/O controller [no datasheet]                            ?
**W860551/P UART with FIFO and Printer Port Controller             <94...
**
**Other:...
*ZyMOS...
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