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**82430LX PCIset (Pentium) LX (Mercury) (82433LX/82434LX) 03/22/93
***Notes:
Date source: TimelineDateSort7_05.pdf
Originally known as the 82430 chipset
Information taken from:
1. 82420_PCIset_ISA_and_EISA_Bridges_Mar93.pdf
2. Intel_Peripheral_Components_1994.pdf
3: 1995_Intel_Pentium_Processors_and_Related_Components.pdf*
>* Datasheet is for LX and NX variants.
Each source has 3 datasheets:
1. 2. 3:
General 82430 Mar'93 Oct'93 Nov'94
82434LX (PCMC) none* Nov'93 Dec'94
82433LX (LBX) none* Oct'93 Dec'94
>* will use the date Mar'93
Differences Between Mar'93 and Oct'93/Nov'93:
General Section:
References in the Mar'93 datasheet to the 82378IB have been changed
to the 82378 in the Oct'93, Indicating the 82378ZB has been
introduced.
82434LX Section:
Only a minor difference,"CPU/Cache" changed to. "CPU/Cache and DRAM
subsystem" at last part of first paragraph.
82433LX Section:
Some features worded slightly differently, changes shown in the text
Differences Between Oct'93/Nov'93 and Nov'94/Dec'94:
This datasheet includes information relevant to both the 430LX and
430NX. The datasheet is arranged such that all text describes both
chipsets, except shaded areas of text, that describe how the 430NX
differs. Any of these sections that only describe the 430NX are not
quoted in the Info and features section. The same datasheet, with
these sections is quoted in the 430NX section.
General Section:
Some features worded slightly differently, none significant. Except
for the later datasheet claiming both the 430LX and NX support 512MB
ram. This is a misprint, or clumsy wording. The Info section makes
specific reference to the 82378ZB variant. Also the 82375/374
combination is referred to as the 82375EB/SB and 82374EB/SB,
indicating the newer EB variant is now available.
82434LX Section:
A minor difference in the features section, see changes in the text.
Aside from references to the NX variant, the info section the same,
except that it ends just before the sentence "Up to twelve single-
sided SIMMs..."
82433LX Section:
Some features worded slightly differently, Mainly "host" replaced
with "CPU", other changes shown in the text. Aside from references
to the NX variant, the info section is the same.
***Info:...
***Configurations:...
***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...
**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...
**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...
**82395SX Smart Cache 12/17/90...
**82396SX Smart Cache 12/17/90...
**82485 Turbo Cache (and 485Turbocache) c90...
**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:...
**????? (Profusion) c:99...
**800 series
***810 (Whitney) 04/26/99...
***810L (Whitney) 04/26/99...
***810-DC100 (Whitney) 04/26/99...
***810e (Whitney) 09/27/99...
***810e2 (Whitney) 01/03/01...
***815 (Solano) 06/19/00...
***815e (Solano-2) 06/19/00...
***815em (Solano-?) 10/23/00...
***815ep (Solano-3) c:Nov'00...
***815p (Solano-3) c:Mar'01...
***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...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
**82C700 FireStar c:97
***Info:...
***Configurations:...
***Features:
PCI Bus
o PCI supports sustained X-1-1-1 bursts, even to DRAM through an
innovative mechanism. PCI operation can be concurrent with
CPU/L2 cache and IDE operations.
o PCI clock generation eliminates the need for external PCI clock
buffers in many designs and allows the PCI bus to be effectively
power-managed.
o 3.3V or 5.0V PCI is supported on the FireStar PCI bus. If FireStar
is configured for 3.3V operation, 5.0V-only PCI plug-in cards and
docking stations can still be supported through a bridge device
such as OPTi's 820824 Cardbus Controller/Docking Solution, whose
prefetch and post-write buffers off-load operations from the
primary PCI bus.
DRAM Controller
o Provides BIOS with the means to automatically detect the DRAM type
in use on each bank, whether fast page mode, EDO, or synchronous
DRAM, allowing BIOS routines to efficiently program DRAM
operation.
ISA Bus
o A full ISA bus is directly provided to support the keyboard
controller, BIOS ROM, and Compact ISA peripheral devices for local
ISA support with no TTL. When reduced ISA operation is selected,
other FireStar pins become available for general purpose use.
Bus Mastering IDE
o FireStar supports two bus mastering IDE channels that function
concurrently with operations on the CPU/L2 cache interface and PCI
interface. Up to four drives are supported.
o An emulated bus mastering IDE feature allows IDE drives that are
not commonly available as bus mastering devices, such as CD-ROM
drives, to act as bus mastering drives. For example, a CD-ROM
drive can transfer video data to DRAM while the CPU is
decompressing the data and sending it to the graphics controller.
Thermal Management
o Fail-safe thermal management incorporates feedback logic that
requires a very inexpensive external sensor circuit.
o Hardware monitors temperature directly and reliably, while the
fail-safe aspect of the circuitry ensures that sensor component
failure will automatically inhibit CPU clocking to prevent
overheating.
o SMM code will be able to read (and display if desired) actual CPU
temperature.
ACPI Implementation
o Microsoft Advanced Configuration and Power Interface (ACPI) is
being implemented in the FireStar silicon. ACPI is a standard
register interface for power management function jointly developed
by Microsoft, Intel, and Toshiba.
Miscellaneous
o The standard version of the chip can run at 3.3V, up to 66MHz on
the CPU bus.
o A new Context Save Mode feature allows chip registers to be saved
and restored more efficiently than ever before, requiring less SMM
code and storage space.
o The OPTi Viper-N+ Power Management Unit is used, maintaining
backward compatibility down to the register level with previously
written support firmware.
o Serial IRQs are supported as an option for interrupts on PCI.
o Known devices in the system can be positively decoded on the PCI
bus, eliminating the delay for subtractive decode and improving
the efficiency of ISA operations.
o ISA bus cycle speed can be individually controlled to certain ISA
device groups.
o Simple logic gate functions can be assigned to unused pins to
eliminate the need for external TTL. Pin programming is far more
flexible than ever possible on any other chip.
**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...
*ZyMOS...
*General Sources:...
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