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**82230/82231 High Integration AT-Compatible Chip Set(ZyMOS)   c:Aug88
***Notes:...
***Info:...
***Configurations:
N82230-12 + N82231-12

The '-12' indicates 12 MHz operation. It is unknown if other versions
exist.

Note that this refers to the Intel version of the ZyMos POACH chipset.
They are AFAIK identical, however the ZyMOS POACH existed before Intel
bought the design, so there may be some minor differences.

***Features:...
**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...
**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...
**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
***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...
**HTK340        "Shasta" 486 Chip Set                          c:Jun92
***Notes:...
***Info:...
***Configurations:...
***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...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...