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**A note on VESA support of 486 chipsets.
Many chipsets state that they support VESA local bus. In some cases
these actually implement VLB somewhat like PCI, where it is entirly
decoupled from the CPU bus. Chipsets that do not state they work with
VLB, may be found on motherboards that contain VLB slots. VLB
is *basically* The 486 CPU pinout in a slot form. Unless these
m/boards contain some additional chips, there VLB implementation is
directly coupled to the CPU.
**Datasheets:...
*_IBM...
*ACC Micro...
*ALD...
*ALi...
*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
*Contaq . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**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:
Chips:
[82454NX] (PXB) [82453NX] (MUX)
[82452NX] (RCG) [82451NX] (MIOC)
[82371EB] (PIIX4E),
CPUs: Single/Dual/Quad P-II Xeon/P-III Xeon
DRAM Types: FPM EDO 2-way Interleave 4-way Interleave
Mem Rows: 8
DRAM Density: 16Mbit 64Mbit
Max Mem: 8GB
ECC/Parity: Both
AGP speed: N/A
Bus Speed: 100
PCI Clock/Bus: 1/3
**????? (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...
*Unresearched:...
*VIA...
*VLSI...
**???????? Cheetah 486, PCI [no datasheet] ?
***Info:...
**VL82C3216 Bus Expanding Controller Cache with write buffer ?...
**VL82C521/522 Lynx/M ?...
**VL82C530 Eagle Ð c95...
**VL82C541/543 Lynx c95...
**VL82C591/593 SuperCore 590 c94...
**VL82C594/596/597 Wildcat c95...
**I/O Chips:
**VL82C106 Combination I/O chip ?...
**VL82C107 SCAMP Combination I/O chip ?...
**VL82C108 TOPCAT Combination I/O chip ?...
**VL82C110 Combination I/O chip ?...
**VL82C113 SCAMP Combination I/O chip ?...
**VL82C114 Combination I/O chip ?...
**Video: ...
**Disk:...
**Modems:...
**Other:...
**Not sure if they actually exist...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...
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