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*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
**82C599    PCI-VLB Bridge [no datasheet, some info]                 ?

82C599 PCI-VLB Bridge referenced in:
http://web.mit.edu/netbsd/src/sys/dev/pci/pcidevs

from:
https://web.archive.org/web/20050313090427/http://www.os2forum.or.at/english/info/os2hardwareinfo/pci_chips.html

"The Contaq Chipset (Contaq: 1080/4224) (8/27/95)

The Contaq 82C599  is paired with one of  their 486VL chipsets (82C596
or  82C597) and  bridges directly  from the  486 CPU  to the  PCI bus.
Paraphrased from the Contaq spec.:

The  82C596 system  controller provides  the CPU  interface,  VESA bus
interface, ISA bus controller, etc. The 82C599 PCI controller provides
the bridge  between PCI master/slave  agent and the  ISA/VESA standard
expansion  bus; it arbitrates  all the  bus transactions  between host
CPU, PCI agent, VESA device, and ISA device.

(Which sounds to me like the PCI bus is attached to the VL bus, rather
than to the CPU, which will cause PCI performance degradation.)"

**82C693    PCI-ISA Bridge [no datasheet]                            ?...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**440 series:
***440FX (Natoma)       05/06/96...
***440LX (Balboa)       08/27/97...
***440BX (Seattle)      c:Apr'98...
***440DX (?)            c:?...
***440EX (?)            c:Apr'98...
***440GX (Marlinespike) 06/29/98...
***440ZX & 440ZX-66 (?) 01/04/99...
***440ZX-M (?)          05/17/99...
***440MX (Banister)     05/17/99...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
*Headland/G2...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
**UM82C088     PC/XT Integration Chip                              <91
***Info:...
***Configurations:...
***Features:...
**UM82C230     286AT MORTAR Chip Set                               <91...
**UM82C210     386SX/286 AT Chip Set                               <91
***Info:...
***Configurations:...
***Features:...
**UM82C3xx     Twinstar & UM82C336F/N & UM82C39x [no datasheet]      ?...
**UM82C380     386 HEAT PC/AT Chip Set                             <91...
**UM82C480     386/486 PC Chip Set                                 c91
***Info:...
***Configurations:...
***Features:
o   100% IBM PC/AT compatible
o   Supports 80386 CPU running at 25/33/40 MHz
o   Supports 80486 CPU running at 25/33/40/50 MHz in 1x clock
o   Supports Intel 80387 / Weitek 3167 / Weitek 4167 Floating Point 
    Coprocessors
o   Built-in cache controller:
    - Direct-mapped organization with write-back operation
    - 0 wait state for cache hit
    - Flexible cache size: 32/64/128/256/512/1024 KB
    - Hidden DRAM refresh to boost system performance
    - built-in registers to support three independent non-cacheable 
      regions
    - Support cache line fill as well as 80486 burst mode
    - Support Automatic Memory Size Detection
o   Sophisticated DRAM controller:
    - Supports Fast/Standard page mode
    - Supports 4 banks CPU speed DRAM with memory size up to 64MB
    - Supports mixable 256Kx9, 1Mx9, 4Mx9 DRAM modules
    - Programmable DRAM wait states
    - Supports 256KB or 384KB (A to F segments of first 1MB) 
      relocation to the top of DRAM memory
o   Supports sophisticated Shadow RAM for video and system BIOS (C, D,
    E, F segments)
o   Supports first GATE A20 and fasy CPU RESET to optimize OS/2 
    operations
o   Synchronous AT bus clock with programmable clock (divided by 2, 3,
    4, 5, 6)
o   Programmable CPU clock (divided by 1, 2, 3, 4)
o   Support 256KB/512KB/1MB EPROMs with single or double EPROM BIOS 
    configuration

**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:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...