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**82258       Advanced Direct Memory Access Coprocessor(ADMA) 01/01/84
***Notes:...
***Info:
Intel's  82258, Advanced Direct  Memory Access  Coprocessor is  a high
performance, 16 bit  DMA processor optimized for the  80286, 80186 and
the  8086 families  of  CPUs and  compatible  with 80386  CPU. It  has
on-chip  bus interface for  the whole  8086 family  architecture. Four
high  speed, independently  programmable  DMA channels  can achieve  a
maximum  cumulative transfer rate  of 8  MByte/sec in  an 8  MHz 80286
system and 4  MByte/sec in 8 MHz 8086/80186 systems.  Channel 3 can be
used   as   a   Multiplexor   channel,   whereby,   it   supports   32
subchannels. This flexibility  allows one to use a  single DMA channel
to   handle  a   large   number   of  slow   and   medium  speed   I/O
devices. Advanced capabilities like  Command and Data chaining and "On
the fly" operations allow the  82258 to remove the I/O management load
from the processor. The 82258  addresses the full 80286 CPU memory (16
MB  for   80286),  thus  simplifying  the   system  design.  Automatic
assembly/disassembly  of data  allows 16  bit processors  to interface
with  common  8  bit   peripherals  and  vice-versa.  Remote  mode  of
operation, where  the 82258 has  its own resident bus,  allows modular
system   design.   The  82258   complements   the  high   performance,
multitasking capabilities of the 80286.

***Versions...
***Features:...
**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
***Notes:...
***Info:...
***Versions:...
***Features:...
**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
***Notes:...
***Info:...
***Versions:...
***Features:...
**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...
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*Logicstar...
**SL9090  Universal PC/AT Clock Chip                            <oct88
***Info:...
***Versions:...
***Features:...
**SL9250  Page Mode Memory Controller (16/20MHz 8MB Max)        <oct88...
**SL9350  Page Mode Memory Controller (16/20/25MHz 16MB Max)    <oct88...
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