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**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...
**HTK320 386DX Chip Set c:Sep91
***Info:
The HTK320 chip set is a 2-chip, high-performance, cost-effective
solution for the 80386DX microprocessor. In its minimum configuration,
this highly integrated chip set requires only four external TTL
devices to implement a fully compatible IBM PC/AT system at speeds up
to 40 MHz.
The HTK320 is based on Headland’s Bus Architecture and consists of the
HT321-ISA Controller and the HT322-Memory Control Unit (MCU) packaged
in two 184-pin plastic quad flat packs. Among its features are an
on-chip cache controller and internal tag RAM.
Unlike other 3rd generation chip sets that have integral Cache
Controllers, the HTK320 integrates the high-speed tag RAM into the
chip set to enhance performance and significantly reduce component
count and manufacturing cost. The direct mapped or 2-way set
associative cache design supports external cache sizes of 32K, 64K,
and 128K.
The HTK320 can support Peripheral Devices such as VGA or SCSI
controllers on the local processor bus, or any 3rd party device that
is designed to work within the 386DX Bus Protocol and Timing. By
eliminating the ISA backplane bottleneck, system designers can greatly
improve the performance of functions such as graphics generation and
disk access.
The HTK320 incorporates a 4-leve1 deep Write Buffer and performs byte
gathering into 32 bit accesses to the DRAM. This facilitates real
zero wait state writes and, when coupled with the 2-way set
associative cache, provides enhanced memory performance.
The HTK320 Supports up to 4 banks of DRAM, configurable as 1-4 Banks.
This flexible memory architecture allows for any memory type, from
256Kb to 16Mb devices, in any bank. Maximum system performance is
achieved from the DRAM banks through various means, including
interleave of Memory Bank and/or Page, and CAS before RAS refresh.
The memory may also be tuned to its maximum potential through the use
of extensive DRAM timing Control Registers, controls include,
Precharge time, Access time on Reads, Active time on Writes, as well
as CAS and RAS delays. In addition, further system performance is
gained by separate timing parameters on the read and Write cycles
which allow system designers to take maximum advantage of the
pipelined structure of the chip set.
The HTK320 also supports extensive mapping registers, which allow
system designers to take maximum advantage of system memory. The chip
set supports EMS LIM 4.0, allows for mixed Shadow/Remap in 16K blocks
between the 640K and 1M boundaries, and eliminates the requirement fer
external decoding logic by support of 27 Programmable Non-cache
regions. With the' extensive HTK320 mapping capability, it is
feasible to seamlessly place 3rd party devices on the local bus
without the need for external TTL support. The HTK320 Mapping
structure provides for a single 8-bit EPROM to be used for both the
system and Video BIOS, further reducing the system chip count and
cost.
***Configurations:...
***Features:...
**HTK340 "Shasta" 486 Chip Set c:Jun92...
**Support Chips:
**HT44 Secondary Cache c:Jun92...
**Other:...
*HMC (Hulon Microelectronics)...
*Logicstar...
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*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
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*TI (Texas Instruments)...
*UMC...
**UM82C*** (IBM/INTEL Direct replacement) c87
Note: Dates vary for when these chips were first available. Two
databooks have been used one from '86 the other from '91. Not all the
chips are listed in the '86 databook, the date of '87 is an
assumption.
PC/XT:
IBM: UMC: Desc:
Intel 8284 UM82C84A 25MHz CMOS Clock Generator and Driver
Intel 8288 UM82C88 Bus Controller
Intel 8259 UM8259A Programmable Interrupt Controller also UM82C59A-2 (CMOS version)
Intel 8237 UM8237A 3-5MHz Programmable DMA Controller (DMAC)
Intel 8253 UM8253*2 2.6-5MHz Programmable Interval Timer
Intel 8255 UM82C55A* Programmable Peripheral Interface
Note: * indicates: possible compatibility, datasheet does not state
explicitly. YMMV.
Note: *2 indicates: The UM8253 can be replaced with the
UM82C54/-2. The datasheet says it is a superset of the 8253, and
works up to 10MHz. Also it's compatible with the 8254. AT: IBM:
UMC: Desc: Intel 82284 UM82C284* 10-12.5MHz Clock Generator and
Ready Interface Intel 82288 UM82C288* 10-12.5MHz Bus Controller
Intel 8254 UM82C54/-2 8-10MHz CMOS Programmable Interval Timer
Intel 8259 UM8259A Programmable Interrupt Controller also
UM82C59A-2 (CMOS version) Intel 8237 UM8237A 3-5MHz Programmable
DMA Controller (DMAC) 74LS612 UM74HCT612* Memory Mapper MC146818
RTC UM82C6818* Real-Time Clock (RTC) Intel 8047 ?? Keyboard
Controller
Note: * indicates: possible compatibility, datasheet does not state
explicitly. YMMV.
**UM82C088 PC/XT Integration Chip <91...
**UM82C230 286AT MORTAR Chip Set <91...
**UM82C210 386SX/286 AT Chip Set <91...
**UM82C3xx Twinstar & UM82C336F/N & UM82C39x [no datasheet] ?...
**UM82C380 386 HEAT PC/AT Chip Set <91...
**UM82C480 386/486 PC Chip Set c91...
**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
***Info:...
***Versions:...
***Features:...
**UM82c45x Serial/Parallel chips ?...
**Other chips:...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...
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