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**Definition of a chip set:
In short it is a set of chips that allow a system designer to build a
computer. If we restrict the term 'chip' to that of a microchip then
technically any microcomputer contains a chip set, even one based of
7400-series logic alone.
In the context of this document, a chip set is defined as any group of
chips used to implement an IBM or IBM-compatible PC/XT/AT/386/486/etc
system.
There are 2 main categories that these chips fall into:
1. Direct copies or re-implementations of Intel chips
2. Chip sets sold as a set of chips to implement an IBM-compatible
that differ in some way to those used in an IBM system, e.g. not
pin compatible.
An example of the former would be some early chips built by VLSI
Technology (at the time known as VTI, to implement a 286:
o VL82C37A is a: 82C37A DMA controller
o VL82C59A is a: 82C59A interrupt controller
o VL82C54A is a: 82C54 timer
o VL82C612 is a: 74LS612 memory mapper
o VL82C84A is a: 82284 clock generator and ready interface
o VL82C88 is a: 82288 bus controller
These are all direct replacements for the parts used in an IBM AT.
Many companies had compatible versions of these chips.
An early example of the latter is the Chips & Technology NEAT chip set:
o 82C211 CPU/Bus controller,
o 82C212 Page/Interleave and EMS Memory controller,
o 82C215 Data/Address buffer
o 82C206 Integrated Peripherals Controller (IPC).
The description does not map directly to the parts used in the IBM AT.
Later chip sets are often even more integrated sometimes consisting of
just one chip, although two seems to be the most common.
The latter is generally considered the definition of a chip set, and
the former is not generally considered a chip set per-se. However when
looking at the early chip sets this distinction can be very
slight. Because of this, sets of chips meeting the criteria for (1.)
have been included where possible.
**'chip set', 'chip-set' or 'chipset'?...
**What's not included:...
**Who made the first chip set?...
**Spelling errors/mistyped words...
**Info needed on:...
**A note on VESA support of 486 chipsets....
**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...
**82495XP/490XP Cache Controller / Cache RAM (for i860) 06/05/91
***Notes:...
***Info:...
***Features:...
**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:...
**????? (Profusion) c:99...
**800 series...
*Headland/G2...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
**85C471/407 Green PC ISA-VLB 486 Single Chip <94
***Info:...
***Configurations:...
***Features:
o Fully IBM PC/AT Compatible. 80486DX2/DX/SX/SL Enhanced, P24D/P24T/
P24C, M6/M7 and Am486DXL/Am486DXL2 Single Chip Controller
o Supports L1 Cache Writeback CPU (P24T/P24D/M6/M7) systems
o Direct Mapped Cache Controller
- Write-Back or Write-Through Schemes
- Bank Interleave or Non-Interleave Cache
- 0/1 Wait State Cache Write Hit
- Flexible Cache Size : 32/64/128/256/512KB or 1MB
- 7 bits or 8 bits TAG addresses
- Flexible 2-1-1-1, 3-1-1-1, 2-2-2-2 and 3-2-2-2 Burst
Read/Write Timing
o Fast Page Burst Mode DRAM Controller
- 4 Banks up to 128MB of DRAMs
- 256K/512K/1M/2M/4M/16MXN DRAM Type
- Programmable DRAM Speed
- Double-sided SIMMs
o Two Programmable Non-Cacheable Regions (64KB-4MB area)
o CAS before RAS Transparent DRAM Refresh
o BIOS/Video ROM Cacheable
o Shadow RAM in Increments of 32KB
- Option to Disable Cache in Shadow RAM Area
o 256K Memory Relocation
o 8042 Emulation of Fast A2OGATE and CPU Reset
o Supports Port 92h
o Hardware/Software De-Turbo Switch
o Supports Two VL-Bus Master
o Supports Flash Memory
o Supports Double/Single frequency input
o CPU Operating frequency 0-100 MHz
o Supports Power Management Mode
- Supports the SMM and the SMI
- CPU Stop Clock Function
- Four Power Saving States
- Long and Short System Timers
- Supports the APM control
- Supports Break Switch control
- Power Saving also on non-SM] CPU
- More System Event Monitoring and the Power Saving Control
o AT Bus State Machine and Controller
o Synchronous/Asynchronous AT Bus Clock
o Programmable AT Bus Speed
- l/2,l/3,1/4,l/5,1/6,1/8,l/10 of Input Clock or 7.159MHz
o Programmable Wait State Generation
- 1 or 2 Wait States for l6-Bit Transfers
- 4 or 5 Wait States for 8-Bit Transfers
o Programmable I/O Recovery Time
o Programmable driving current for the DRAM and the ISA bus signals
o 32-Bit Data Buffer Between CPU and AT System
o Data Conversion and Swapping Logic for 32-/16-/8-Bit Transfers
During CPU and DMA Cycles
o Data Latches for AT Read Cycles
o Parity Generation and Detection Logic
o Port B Register and NMI Logic
o Integrated Peripheral Controllers
- 8259A x2 / 8237x2 / 8254 / 74LS612
o 387/487SX and Weitek 3167/4167 Coprocessors Interface
o 208-Pin PQFP
o 0.8nm Low Power CMOS Technology
**85C496/497 486-VIP 486 Green PC VESA/ISA/PCI Chipset <95...
**85C501/502/503 Pentium/P54C PCI/ISA Chipset <01/09/95...
**5101/5102/5103 Pentium/P54C PCI/ISA Chipset <04/02/95...
**5120 Pentium PCI/ISA Chipset (Mobile) <01/28/97...
**5501/5502/5503 Pentium/P54C PCI/ISA Chipset <04/02/95...
**5511/5512/5513 Pentium PCI/ISA <06/14/95...
**5571 (Trinity) Pentium PCI/ISA Chipset (75MHz) <12/09/96...
**5581/5582 (Jessie) Pentium PCI/ISA Chipset (75MHz) <04/15/97...
**5591/5592/5595 (David) Pentium PCI A.G.P. Chipset <01/09/98...
**5596/5513 (Genesis) Pentium PCI Chipset <03/26/96...
**5597/5598 (Jedi) Pentium PCI/ISA Chipset <04/15/97...
**530/5595 (Sinbad) Host, PCI, 3D Graphics & Mem. Ctrl.<11/10/98...
**540 (Spartan) Super7 2D/3D Ultra-AGP Single C.S.<11/30/99...
**55x SoC (System-on-chip) <03/14/02...
**
**Support chips:
**85C206 Integrated Peripheral Controller [no datasheet] ?...
**5595 Pentium PCI System I/O <12/24/97...
**950 LPC I/O <07/16/99...
**Other:...
**PII/III/Pro...
**Athlon etc...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...
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