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*Read Me/FAQ/General Info... *_IBM... *ACC Micro... *ALD... *ALi... **M1439/31/45 486 VLB/PCI/ISA [no datasheet, some info] <May95 ***Notes:... ***Configurations:... **M1489/87 FinALi-486 PCI Chipset <Feb95... **M???? Genie, Quad Pentium [no datasheet, some info] c95... **M1451/49 Aladdin (Pentium) [no datasheet] ?... **M1511/12/13 Aladdin II (Pentium) [no datasheet, some info] >Apr95... **M1521/23 Aladdin III 50-66MHz <Nov96... **M1531/33/43 Aladdin IV & IV+ 50-83.3MHz <05/28/97... **M1541/42/33/43 Aladdin V & V+ 50-100MHz ?... ***Configurations: M1541/M1542 System Controller M1533/M1543 PCI-to-ISA Bus Bridge M1541 + M1533 M1541 + M1543 M1542 + M1533 M1542 + M1543 See the M1531 section for details on the M1533. The datasheet is very confusing as it does not state how the terms M1531, M1532, Aladdin V and Aladdin V+ relate to each other. According to: http://pclinks.xtreemhost.com/chipsets_pentium.htm The Aladdin V and Aladdin V+ names are both associated with the M1541. The M1541 has 5 revisions, A thru E. The M1542 part number is assoc- iated with revision F onwards. The main difference with the M1542 is that it now can cache 512MB of RAM, instead of only 128MB. The diff- erence between the Aladdin V and Aladdin V+ is that the V+ officially supports a 100 MHz bus, the V only 83.3 MHz. However, none of this information can be derived from the datasheets used to write the info and features section. ***Features:... **M1561/43/35D Aladdin 7 ArtX [no datasheet, some info] 11/08/99 ***Notes:... ***Info & Features:... ***Configurations:... **M6117 386SX Single Chip PC <97... ** **Support Chips: **M1535/D South Bridge ?... ** **May not exist:... **Later Chipsets:... ***PII None of this information has been checked against actual datasheets. North/South Name: CPU FSB AGP RAM M1621/M1533 Aladdin Pro PII 66/100 2x 2GB EDO SDRAM M1621/M1543/C Aladdin Pro II PII Dual 66/100 2x 2GB EDO SDRAM M1631/M1535D Aladdin TNT2 (UMA) PIII/Cel 66/100 2x 1.5GB EDO SDRAM M1632 Aladdin Cyber Blade 2 PIII 100 2x 1.5GB EDO SDRAM M1641B/M1535D Aladdin Pro 4 PIII/Cel 66/100 4x 1.5GB EDO SDRAM M1644/M1535D+ Aladdin Cyberblade XT PIII/Cel 100/133 4x 3GB SDRAM DDD M1644M/M1535D+ Aladdin-T Cyberblade [same as 1644/M1535D+ but supports Tualatin] M1651/M1535D+ Aladdin Pro 5 PIII/Cel 100/133 4x 3GB SDRAM DDR M1651T/M1535D+ Aladdin Pro 5T [same as M1651/M1535D+ but supports Tualatin] "Aladdin Cyberblade" above is short for "CyberAladdin Cyberblade". All Cyberblade chips have integrated video, as does the Aladdin TNT2. ***Athlon... **Other:... *AMD . . . . . . . [no datasheets, some info]... *Chips & Technologies... **CS8231 TURBO CACHE-BASED 386/AT (82C301/307/303/304/305/306) c86 ***Info:... ***Configurations:... ***Features:... **CS8232 CMOS 386/AT (82C301/302/303/304/305/306) c86... **CS8233 PEAK/386 AT (Cached) (82C311/82C315/82C316) c:Dec90... **CS8236 386/AT (82C301/2/3/4/5/6/206) c86... **CS8237 TURBO CACHE-BASED 386/AT (82C301/7/3/4/5/6/206) c86... **CS8238 CHIPS/280 & 281 (386 MCA)(82C321/322/325/223/226) c:Aug89... **CS82310 PEAK/DM 386 AT (82C351/82C355/82C356) c91... **CS8281 NEATsx (386SX) (82C811/812/215/206) c:Dec89... **CS8283 LeAPset-sx (82C841/82C242/82C636) c:Mar90... **CS8285 PEAKsx (82C836/82C835) c91... **CS8288 CHIPSlite-sx (82C836/82C641/82C835) c?... **CS4000 WinCHIPS (64200/84021/84025) c92... **CS4021 ISA/486 (84021/84025) c92... **CS4031 CHIPSet (84031/84035) 5/10/93... **CS4041/5 CHIPSet (84041/84045) 2/10/95... **CB8291 ELEAT [no datasheet] c90... **CB8295 ELEATsx [no datasheet] c90 assumed to be sx variant of of ELEAT **82C100 IBM PS/2 Model 30/Super XT ?... **82C110 IBM PS/2 Model 30/Super XT ?... **82C235 Single Chip AT (SCAT) c89... **82C836 Single Chip 386sx (SCATsx) <91... **F8680/A PC/CHIP Single-Chip PC c93... ** **Support Chips: **64200 (Wingine) High Performance 'Windows Engine' c:Oct91... **82C206 Integrated Peripheral Controller c86... **82C601/A Single Chip Peripheral Controller <08/30/90... **82C607 Multifunction Controller <Jun88 ***Info:... ***Versions:... ***Features: o Single Chip UART and Analog Data Separator o 100% functionally compatible to the IBM PS/2 model 50, 60, and 80 o Fully compatible NSl6550 Asynchronous Communications Element o 16 bytes FIFO for transmitter and receiver buffers o Easy interface to the Industry standard floppy disk controllers (765A/765B/8272A) o Supports multiple data rates (250K, 300K, and 500Kbps) o High drive, 48 mA output buffer o Schmitt trigger inputs o Low power advanced CMOS technology o 68 pin PLCC or 80 pin Flat Pack **82C710 Universal Peripheral Controller c:Aug90 ***Info:... ***Versions: 82C710 ***Features:... **82C711 Universal Peripheral Controller II c:Jan91... **82C712 Universal Peripheral Controller II c:Jan91... **82C721 Universal Peripheral Controller III c:May93 ***Info:... ***Versions:... ***Features:... **82C735 I/O Peripheral Controller With Printgine c:Jul93... **82C835 Single CHIP 386sx AT Cache Controller c:Apr91... **F87000 Multi-Mode Peripheral Chip 11/23/93... **Other:... **Disk:... **Video:... *Contaq . . . . . [no datasheets, some info]... *Efar Microsystems [no datasheets, some info]... *ETEQ... **66x8 VIA clones [no datasheet] ? ***Notes:... *Faraday... *Forex . . . . . . [List only, no datasheets found]... *Intel **IBM PC/XT/AT Chip Sets... **82230/82231 High Integration AT-Compatible Chip Set(ZyMOS) c:Aug88... **82310 Micro Channel Compatible Peripheral Chip Set 04/21/88... **82311 High Integration MCA Compatible Perip. Chip Set 11/14/88... **82320 MCA compatible Chipset [no datasheet] 04/10/89... **82340DX Chip Set (VLSI) (82346/82345/82355) 01/08/90... **82340SX Chip Set (VLSI) (82343/82344) 01/25/89... **82350 EISA Chip Set 07/10/89... **82350DT EISA Chip Set 04/22/91 ***Notes:... ***Info:... ***Configurations:... ***Features:... **82420TX/ZX PCIset (for 486) TX (Saturn), ZX (Saturn II) c:Nov92... **82420EX PCIset (for 486) EX (Aries) (82425EX/82426EX) <Dec94... **82430LX PCIset (Pentium) LX (Mercury) (82433LX/82434LX) 03/22/93... ***Configurations: Parts: Intel 82434LX (PCMC) PCI/CACHE/MEMORY CONTROLLER Intel 82433LX (LBX) LOCAL BUS ACCELERATOR ISA: 82434LX + 2x 82433LX + 82378IB 82434LX + 2x 82433LX + 82378ZB The main difference between the 82378IB and 82378ZB is the number of PCI masters supported. See the 82378 section for details. EISA: Intel 82434LX + 2x 82433LX + 82374EB + 82375EB Intel 82434LX + 2x 82433LX + 82374SB + 82375SB The main difference between the EB and SB variants is that the SB includes power management options. It was released later when various enhancements had been made to the EB variant. See the 82374/82375 section for details. It is unlikely the SB variant is paired with this chipset as it was released when the 430LX was being replaced with the 430NX. These chipsets are often paired with the SMC 665 for I/O support or the NCR 810 for SCSI. Why this section is so detailed: Any chips manufactured before Jan 94 have serious problems with the PCI/EISA bridge's throughput. The problem affects the ISA version too, but is less pronounced. Two references from November'93 give some inportant detail that seems to be missed in the datasheets. It would appear there is an update to the 82374/82375EB EISA components in late '93, that has some significant changes. these are not reflected in the datasheets referenced. It would appear the mentioned redesign, maps well to the update of 82378 ISA component from the 82378IB to the 82378ZB. Though no information specifically stating this has been found. It is only that these are in the same time period. ****References:... ***Features:... **82430NX PCIset (Pentium) NX (Neptune) (82433NX/82434NX) Mar94... **82430FX PCIset (Pentium) FX (Triton I) (82437FX/82438FX)01/31/95... **82430MX PCIset (Pentium) MX (Mobile Triton)(82437/438MX)11/01/95... **82430HX PCIset (Pentium) HX (Triton II) (82439HX) 02/12/96... **82430VX PCIset (Pentium) VX (Triton II) (82437VX/82438) 02/12/96... **82430TX PCIset (Pentium) TX (Triton II) (82439TX) 02/17/97... **82450KX/GX PCIset (Pentium Pro) KX/GX (Mars/Orion) 11/01/95... ** **Support Chips: **82091AA Advanced Interface Peripheral (AIP) c93... **8289 Bus Arbiter (808x) c79... **82289 Bus Arbiter for iAPX 286 Processor Family c83 ***Info:... ***Info:... ***Versions:... ***Features:... **82258 Advanced Direct Memory Access Coprocessor(ADMA) 01/01/84... **82335 High-Integration Interface Device For 386SX c:Nov88... **82360SL I/O Subsystem 10/05/90... **82370 Integrated System Peripheral (for 82376) c:Oct88... **82371FB/SB PCI ISA IDE Xcelerator 82371FB/82371SB (PIIX/3) 01/31/95... **82371MX Mobile PCI I/O IDE Xcelerator (MPIIX) 11/01/95... **82371AB PCI-TO-ISA / IDE Xcelerator 82371AB (PIIX4) 02/17/97... **82374/82375 PCI-EISA Bridge (82374EB/82375EB, 374SB/375SB) c:Mar93... ***Configurations: 82374EB + 82375EB (c93) 82374SB + 82375SB (c94) ***Features:... **82378 System I/O (SIO) (82378IB and 82378ZB) c:Mar93... **82379AB System I/O-APIC (SIO.A) <Dec94... **82380 32-bit DMA Controller w/ Integrated Peripherals 02/01/87... **82380FB/AB PCIset: 82380FB Mobile PCI-to-PCI Bridge(MPCI2) 02/17/97... **82384 Clock Generator and Reset Interface c86... **82385 32-bit Cache Controller for 80386 09/29/87... **82385SX 32-bit Cache Controller for 80386SX 01/25/89... **82395DX High Performance Smart Cache 06/18/90 ***Notes:... ***Info:... ***Versions:... ***Features:... **82395SX Smart Cache 12/17/90... **82396SX Smart Cache 12/17/90 ***Notes:... ***Info:... ***Versions:... ***Features:... **82485 Turbo Cache (and 485Turbocache) c90... **82489DX Advanced Programmable Interrupt Controller 10/12/92... **82495DX/490DX DX CPU-Cache Chip Set <Sep91 ***Notes:... ***Info:... ***Configurations:... ***Features:... **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... ***Features: o High Performance Second Level Cache - Zero Wait States at 66 MHz - Two-Way Set Associative - Writeback with MESI Protocol - Concurrent CPU Bus and Memory Bus Operation - Boundary Scan o Pentium Processor (735\90, 815\100) - Chip Set Version of Pentium Processor (735\90, 815\100) - Superscalar Architecture - Enhanced Floating Point - On-Chip 8K Code and 8K Data Caches - See Pentium Processor Family Data Book for More Information o Highly Flexible - 1 Mbyte to 2 Mbyte - 64-, or 128-Bit Wide Memory Bus - Synchronous, Asynchronous and Strobed Memory Bus Operation - Selectable Bus Widths, Line Sizes, Transfers and Burst Orders o Full Multiprocessing Support - Concurrent CPU, Memory Bus and Snoop Operations - Complete MESI Protocol - Internal/External Parity Generation/Checking - Supports Read For Ownership, Write-Allocation and Cache-to-Cache Transfers ** **Later chipsets (basic spec): **440 series:... **450NX (?) 06/29/98:... **????? (Profusion) c:99... **800 series... ***815p (Solano-3) c:Mar'01 Chips: [82815P] (MCH) [82801AA] (ICH) [82802] (FWH) CPUs: P-III/P-III(T)*1/Celeron DRAM Types: SDRAM PC133 Mem Rows: 6 DRAM Density: 64Mbit 128Mbit 256Mbit Max Mem: 512MB ECC/Parity: No AGP speed: 1x 2x 4x Bus Speed: 66 100 133 PCI Clock/Bus: 1/2 1/3 1/4 PCI 2.2 >*1 P-III Tualatin first supported from B-0 stepping of chipset. ***815g (Solano-3) c:Sep'01... ***815eg (Solano-3) c:Sep'01... ***820 (Camino) 11/15/99... ***820e (Camino-2) 06/05/00... ***830M (Almador) 07/30/01... ***830MP (Almador) 07/30/01... ***830MG (Almador) 07/30/01... ***840 (Carmel) 10/25/99... ***845 (Brookdale) 09/10/01... ***845MP (Brookdale-M) 03/04/02... ***845MZ (Brookdale-M) 03/04/02... ***845E (Brookdale-E) 05/20/02... ***845G (Brookdale-G) 05/20/02... ***845GL (Brookdale-GL) 05/20/02... ***845GE (Brookdale-GE) 10/07/02... ***845PE (Brookdale-PE) 10/07/02... ***845GV (Brookdale-GV) 10/07/02... ***848P (Breeds Hill) c:Aug'03... ***850 (Tehama) 11/20/00... ***850E (Tehama-E) 05/06/02... ***852GM (Montara-GM) 01/14/03... ***852GMV (Montara-GM) ???... ***852PM (Montara-GM) 06/11/03... ***852GME (Montara-GM) 06/11/03... ***854 (?) 04/11/05... ***855GM (Montara-GM) 03/12/03... ***855GME (Montara-GM) 03/12/03... ***855PM (Odem) 03/12/03... ***860 (Colusa) 05/21/01... ***865G (Springdale) 05/21/03... ***865PE (Springdale-PE) 05/21/03... ***865P (Springdale-P) 05/21/03... ***865GV (Springdale-GV) c:Sep'03... ***875P (Canterwood) 04/14/03... *Headland/G2... **Notes:... **GC101/102 12/16MHz PC/AT Compatible Chip Set c:Feb88... **GC101/102/103 12/16MHz PC/AT Compatible Chip Set + EMS 4.0 c:Jul89... **GCK113 80386 AT Compatible Chip Set c:oct89... **GCK181 Universal PS/2 Chip Set c:Mar89... **HT11 Single 286 AT Chip [no datasheet] <Aug90... **HT12/+/A Single 286 AT Chip with EMS support c:Aug90... **HT18 80386SX Single Chip c:Sep91... **HT21 386SX/286 Single Chip (20 MHz) c:Aug91... **HT22 386SX/286 Single Chip (25 MHz) c:Sep91... **HT25 3-volt Core Logic for 386SX c:Dec92... **HT35 Single-Chip Peripheral Controller [partial info] ?... **HTK320 386DX Chip Set c:Sep91... **HTK340 "Shasta" 486 Chip Set c:Jun92... ***Features: o Support for 486SX/DX/DX2 CPU o 2 - 184 pin PQFP devices o Local bus interface o 16, 20, 25 and 33MHz CPU speeds o Fully static operation o Weitek 4167 supported o System and Video BIOS on single ROM o Uses 0.7 Micron HCMOS process ISA Controller o AT Compatible o Synchronized 8MHz ISA bus o Posted backplane memory writes o 10 or 16 bit l/O mapping o Integrated 82375, 82593 and 8254 functionality o Fast gate A20/Fast reset Write Buffer o 4 deep on-chip buffer o Byte gathering o Out of order operation o Full or partial write buffer hits DRAM Controller o Line burst capability from DRAM to 80486 o 256K/1M/4M/16M DRAMs o Mixed memory types o EMS 4.0 o Hidden refresh operation o 256MB Maximum system memory o Staggered refresh o Shadowing in 16KB increments between 640KB and 1MB o Remapping o Fast paging o 2 or 4 way interleaving **Support Chips: **HT44 Secondary Cache c:Jun92... **Other:... *HMC (Hulon Microelectronics)... *Logicstar... *Motorola... *OPTi... *PC CHIPS/Amptron/Atrend/ECS/Elpina/etc... *SIS... **85C360 ISA 386DX Single Chip chipset [no datasheet] ? ***Notes:... **85C401/402 ISA 486DX/SX Cache chipset [no datasheet] ?... **85C406/5/411/420/431 EISA 386/486 Chipset [no datasheet] c91... **85C460 ISA 386DX/486 Single Chip [no datasheet] ? **85C461 ISA 386DX/486 Single Chip [no datasheet] ?... **85C471/407 Green PC ISA-VLB 486 Single Chip <94 ***Info:... ***Configurations:... ***Features:... **85C496/497 486-VIP 486 Green PC VESA/ISA/PCI Chipset <95 ***Info:... ***Configurations:... ***Features:... **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 ***Info:... ***Configurations:... ***Features:... **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 ***Info:... ***Configurations:... ***Features:... **5597/5598 (Jedi) Pentium PCI/ISA Chipset <04/15/97... **530/5595 (Sinbad) Host, PCI, 3D Graphics & Mem. Ctrl.<11/10/98 ***Info:... ***Configurations:... ***Features:... **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] ? ***Notes:... **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)... **SN74LS610/2 IBM AT: SN74LS610, SN74LS612 Memory Mappers <84 ***Notes:... ***Info: Each 'LS610 and 'LS612 memory mapper integrated circuit contains a 4-line to 16-line decoder, a 16-word by 12-bit RAM, 16 channels of 2-line to 1-line multiplexers, and other miscellaneous circuitry on a monolithic chip. Each 'LS610 also contains 12 latches with an enable control. The memory mappers are designed to expand a microprocessor's memory addressing capability by eight bits. Four bits of the memory address bus (see System Block Diagram)[see datasheet] can be used to select one of 16 map registers that contain 12 bits each. these 12 bits are presented to the system memory address bus through the map output buffers along with the unused memory address bits from the CPU. However, addressable memory space without reloading the map registers is the same as would be available with the memory mapper left out. The addressable memory space is increased only by periodically reloading the map registers from the data bus. This configuration lends itself to memory utilization of 16 pages of 2^(n-4) registers each without reloading (n - number of address bits available from CPU). These devices have four modes of operation: read, write, map, and pass. Data may be read from or loaded into the map register selected by the register select inputs (RS0 thru RS3) under control of R/W whenever chip select (CS) is low. The data I/O takes place on the data bus DO thru D7. The map operation will output the contents of the map register selected by the map address inputs (MA0 thru MA3) when CS is high and MM (map mode control) is low. The 'LS612 output stages are transparent in this mode, while the 'LS610 outputs may be transparent or latched. When CS and MM are both high (pass mode), the address bits on MA0 thru MA3 appear at M08-MO11, respectively (assuming appropriate latch control) with low levels in the other bit positions on the map outputs. ***Versions:... ***Features:... **TACT82000 3-Chip 286 [no datasheet] c89... **TACT82411 Snake Single-Chip AT Controller c90... **TACT82S411 Snake+ Single-Chip AT Controller [no datasheet] c91... **TACT83000 AT 'Tiger' Chip Set (386) c89... **TACT84500 AT Chip Set (486, EISA) [no datasheet, some info] c91... **Other:... *UMC... **UM82152 Cache Controller (AUStek A38152 clone) <91 ***Info:... ***Versions:... ***Features:... **UM82C852 Multi I/O For XT <91... **UM82C206 Integrated Peripheral Controller <91... **UM82c45x Serial/Parallel chips ?... **Other chips:... ***Peripheral: UM2661 Enhanced Programmable Communications Interface (EPCI) UM2681 Dual Asynchronous Receiver/Transmitter (DUART) UM6520/A Peripheral Interface Adapter(PIA) (MC6820) UM6521/A Peripheral Interface Adapter(PIA) (MC6821) UM6522/A Versatile Interface Adapter (VIA) UM6532/A RAM, I/O, Timer Array UM6551 Asynchronous Communication Interface Adapter (ACIA) UM82C01 Capacitance Keyboard Encoder (CKE) UM82C11-C Printer Adapter Interface (PAI) UM82C450 Asynchronous Communication Element (ACE) UM82C451 Parallel/Asynchronous Communication Element UM82C452 Single Chip Multi-I/O (Serial/Parallel) UM82C550 Asynchronous Communications Element with FIFOs UM82450 Asynchronous Communication Element (ACE) UM8250A Asynchronous Communication Element (ACE) UM8250B Asynchronous Communication Element (ACE) UM82C8167 RTC ***Other:... *Unresearched:... **A - D... **E - G... **H - I... **J - R... **S... ***Other Summit chipset - 3/486 Samsung KS82C884 SOLUTIONS 88C211, 88C212, 88C215, P82C206 - isa 386sx c1990 ST Microelectronics PC Client ST86 processor **T - Z... ***Toshiba ... ***UniChip ... ***USA... ***Other... *VIA **SL9XXX FlexSet family General information... **SL9011 System Controller (80286/80386SX/DX, 16/20/25MHz) <Jan90... **SL9020 Data Controller <Jan90... **SL9025 Address Controller <Jan90... **SL9030 Integrated Peripheral Controller <Jan90... **SL9090/A Universal PC/AT Clock Chip <oct88... **SL9095 Power Management Unit ? ***Info:... ***Versions:... ***Features:... **SL9151 80286 Page Interleave Memory Controller (16-25MHz) ?... **SL9250 80386SX Page Mode Memory Controller (16/20MHz 8MB) ? ***Info:... ***Versions:... ***Features:... **SL9251 80386SX Page Interleave Memory Controller <04/13/90... **SL9252 80386SX System and Memory Controller <06/12/90... **SL9350 80386DX Page Mode Memory Controller (16-25MHz 16MB) ? ***Info:... ***Versions:... ***Features:... **SL9351 80386DX Page Interleave Memory Controller (33MHz) ? ***Info:... ***Versions:... ***Features:... **SL9352 80386DX System and Memory Controller <06/12/90... **SLXXXX Other chips... ** **VT82C470 "Jupiter", Chip Set (w/o cache) 386 [no datasheet] ? **VT82C475 "Jupiter", Chip Set (w/cache) 386 [no datasheet] ? **VT82C486/2/3 "GMC chipset" [no datasheet, some info] ? ***Notes:... ***Info: 8) The VIA GMC chipset (VIA: 1106/4358) (5/18/96) -------------------- This chipset includes the VIA VT82C486A-F with a built-in 8042 keyboard controller and a VIA VT82C505-D chipset for the VESA to PCI bridge. Specifically, the chips are as follows: 82C486A - cache/memory controller + VLB to ISA bridge 82C482 - VLB to ISA bridge (why there are two I'm not sure) 82C483 - DRAM controller VT82C505 PCI to VLB bridge A board using this chipset has been unstable (even under DOS/Win), and did not work with an Adaptec 2940 SCSI controller under OS/2 at all. Boards based on this chipset are therefore to be avoided. I have, however, had one report of success from someone using revision G of this chipset, so it could be that the new revision fixes problems with older rev's. Designers with whom I've corresponded indicate that improperly designed boards which use this chipset may have unstable caches. In addition, the cache controller reads the data into the cache SRAMs first, then into the CPU, increasing latency and reducing throughput. ***Configurations:... **VT82C495/480 "Venus" Chip Set [no datasheet] ? **VT82C495/491 ? EISA Chip Set [no datasheet, some info] <93... **VT82C496G Pluto, Green PC 80486 PCI/VL/ISA System <05/30/94... **VT82C530MV 3.3V Pentium chipset [no datasheet, some info]<05/30/94... **VT82C570M Apollo Master, Green Pentium/P54C <06/22/95... **VT82C580VP Apollo VP, Pentium/M1/K5 PCI/ISA System <02/15/96... **VT82C580VPX Apollo VPX, VPX/97, Pentium with 66/75MHz Bus <01/09/97... **VT82C590 Apollo VP2, VP2/97, Single-Chip Pentium 66MHz <01/10/97... **VT82C597/AT Apollo VP3, Single-Chip for Pentium with AGP <10/03/97 ***Info:... ***Configurations:... ***Features:... **VT82C598MVP Apollo MVP3,Single-Chip 66/75/83/100MHz & AGP <09/22/97... **VT8501 Apollo MVP4,Single-Chip 66-100MHz & AGP <11/04/98... **VT82C680 Apollo P6, Pentium-Pro Chip Set <08/30/96 ***Notes:... ***Info:... ***Configurations:... ***Features:... **Support chips: **VT82C505 Pentium/486 VL to PCI Bridge <05/30/94... **VT82C586/A/B PCI Integrated Peripheral Controller <10/13/96... **VT82C596/A Mobile PCI Integrated Peripheral Controller <11/05/97... **VT82C686A/B PCI Super-I/O Integrated Peripheral Ctrl. <02/10/98... **Later P-Pro/II/III/Celeron... **Later AMD... **Other... *VLSI... **Notes:... **VL82C*** IBM/INTEL Direct replacement ?... **VL82CPCAT-QC AT 12 MHz 0/1 ws c88... ***Basics: Max 12MHz "Popular 12 MHz Chip Set" ***Info: ****Overview:... ****VL82C100 ------- PC/AT-Compatible Peripheral Controller... ****VL82C101A/101B - PC/AT-Compatible System Controller... ****VL82C102A ------ PC/AT-Compatible Memory Controller... ****VL82C103/103A -- PC/AT-Compatible Address Buffer... ****VL82C104 - PC/AT-Compatible Data Buffer... ***Configurations:... ***Features:... **VL82CPCPM-QC AT 16 MHz 0/1 ws [no datasheet] c88... **VL82CPCAT-16QC/-20QC AT 16 MHz or 20 MHz, 0/1 ws +386SX c89... **VL82CPCPM-16QC/-20QC AT 16 MHz or 20 MHz, Page-Mode +386SX c89... **VL82C031/032/033 PS/2 Model 30-compatible chip set c88... **VL82C286-SET TOPCAT 286/386SX PC/AT-Compatible Chip Set ?... **VL82C386-SET TOPCAT 386DX PC/AT-Compatible Chip Set ?... **VL82C386sx-SET TOPCAT 286/386SX PC/AT-Compatible Chip Set ?... **VL82C310 SCAMP-LT ?... **VL82C311 SCAMP-DT ?... **VL82C311L SCAMP-DT 286 ?... **VL82C312 SCAMP Power Management Unit (PMU) ?... **VL82C315A SCAMP II, Low-Power Notebook Chipset ?... ***Configurations: VL82C315A-FC Configurations: VL82C315A VL82C315A + VL82C325 (Cache controller) VL82C315A + VL82C322A (PMU) VL82C315A + VL82C325 + VL82C322A Either the VL82C113 or the VL82C114 Combination I/O *should* work with this chip set. ***Features:... **VL82C322A SCAMP II, Power Management Unit (PMU) ?... **VL82C316 SCAMP II, PC/AT-Compatible System Controller ?... **VL82C323 SCAMP II, 5 Volt Power Management Unit (PMU) ?... **VL82C380 Single chip 386DX PC/AT Controller +on-chip cache ?... **VL82C325 VL82C386SX System Cache controller ? ***Info:... ***Versions:... ***Features:... **VL82C335 VL82C386DX System Cache ctrl. [no d.sheet] ?... **VL82C315A/322A/3216 Kodiak 32-Bit Low-Voltage Chip Set ?... **VL82C420/144/146 SCAMP IV [no datasheet, some info] c93... ***Notes: from:http://www.cbronline.com/news/vlsi_technology_has_80486sl_notebook_chip_set The SCAMP IV set comprises three devices - VL82C420 system controller, VL82C144 peripheral combination chip, and optional VL82C146 ExCA controller. A standard SCAMP IV system design can be completed with as few as three TTL components. The devices in the set interconnect via the VLSI proprietary Multiplexed Local Bus interface; they are implemented in 0.8 micron CMOS and support mixed voltage operation at 3V and 5V. The VL82C420 is designed to be tightly coupled with the power-managed Intel CPUs running at up to 33MHz including ones with clock- doublers. The memory controller supports up to 32Mb.The peripherals chip also includes floppy disk controller with digital data separator, a 16C550-compatible universal asynchronous transmitter-receiver with infra-red support. Power management features include socket power control, 3.3V/5V suspend with modem and ring resume detection and power saving with Window inactivity. Up to four VL82C146s can be used in each system. Samples August, volume October at $32.50 for the VL82C420, $25.00 for the VL82C144 and $8.50 for the VL82C146 for 1,000-up. **VL82C480 System/Cache/ISA bus Controller ?... **VL82C481 System/Cache/ISA bus Controller c92... **VL82C486 Single-Chip 486, SC486, Controller ?... **VL82C425 486 Cache controller ?... **???????? Cheetah 486, PCI [no datasheet] ?... **VL82C3216 Bus Expanding Controller Cache with write buffer ? ***Info:... ***Versions:... ***Features: o High-performance 386DX, 486SX or 486DX interface o Write buffer - 64 byte (16 DWord) o External second-level cache - 128 KB o i486 internal cache control o BIOS control of second-level cache o 386SX local bus emulation o 386SX local bus address pipelining with four word FIFO o 32-16 bit cycle type translation o Auto peek cycle operations for both first and second-level cache o i486 BIOS initialize o 40 MHz max CPU freq @ 5.0V 33 MHZ max SX freq @ 5.0V 25 MHz max CPU and SX freq @ 3.3V o Power management plus support for AMD's system Management Mode (SMM) o 0.8-micron CMOS technology o 160-lead metric quad flat pack (MQFP) **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... **FE6500 CPU Core Logic for PS/2 Model 70/80 Compatibles c:88 ***Notes:... ***Info: ****General:... ****FE6000 Enhanced CPU and Peripheral and Control Logic:... ****FE6010 DMA and Channel Control logic:... ****FE6022 Address and Data Buffer Devices:... ****FE6030 Cache/DRAM and Channel Control Device:... ***Configurations:... ***Features:... **WD6400SX/LP CPU Core Logic for PS/2 386SX Compatibles <90... **WD6500 CPU Core Logic for PS/2 386DX/486 Compatible <90... **WD7600A/LP/LV System Chip Set for 80286 or 80386SX <11/25/91... **WD7700/LP System Chip Set for 80286 or 80386SX (Cache) <11/25/91... **WD7855 System controller for 80386SX <09/25/92... **WD7900/LP/LV System Chip Set for 80286 or 80386SX (Cache) <11/25/91... **WD8110 System controller for 80386DX/486 <11/30/93... ** **Support Chips: **WD76C20x Floppy, RTC, IDE and Support Logic Device <11/25/91... ***Info: GENERAL DESCRIPTION The WD76C20 is a member of the WD7600 chip set which provides a cost-effective, power-efficient solution to PC systems design, especially those relating to "lap-top" devices. The set includes the WD76C10, the WD76C20, and the WD76C30 as shown in Figure 1-1. Together these chips provide all necessary logic to build a fully integrated system board for several varieties of IBM PC/AT compatibles including systems using 80286, 80386SX, and 80C286 processors. As part of this chip set, the WD76C20 provides these integral functions: o Bus Interface Logic o IDE Interface o Chip Select Logic o Floppy Disk Controller o Real Time Clock o Suspend/Resume Logic The Floppy Disk Controller (FDC) component provides necessary timing and signalling between the host processor peripheral bus and a floppy disk drive through a cable connector. The Real Time Clock component provides calendar and clock information for the system. The IDE Interface controls buffering between the system's AT Bus and PC/AT compatible IDE drive interface. The Bus Interface Logic controls buffering of data between the system's AT Bus and the WD76C20. The Chip Select Logic section provides decoding for selected chip functions both within the WD76C20 and on the PC/AT motherboard. Suspend/Resume Logic provides support for chip set power-down and resume sequences. ***Versions:... ***Features:... **WD76C30x Perip. Ctrl, Interrupt Multiplex, and Clock Gen <11/18/91... **WD7615 Desktop Buffer Manager <04/15/92... **WD7625 Desktop Buffer Manager <10/01/92... **WD8120LV Super I/O [no datasheet] ? **Other Chips:... *Winbond... **W83977EF WINBOND I/O (Multi I/O) <98 ***Info:... ***Versions:... ***Features:... **W83977ATF WINBOND I/O (Multi I/O) <98... ** **Disk Controller: **W83759/A/F/AF Advanced VL-IDE Disk Controller <96 ***Notes: Information taken from W83759A datasheet which lists differences to the W83759. The datasheet is not for the W83759 and W83759A ***Info:... ***Versions:... ***Features:... **W83769 Local Bus IDE Solution <94 ***Info:... ***Versions:... ***Features:... ** **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... *General Sources:...

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