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**82371MX     Mobile PCI I/O IDE Xcelerator (MPIIX)           11/01/95
***Notes:...
***Info:
The 82371MX PCI I/O IDE Xcelerator (MPIIX) provides the bridge between
the PCI bus and the  ISA-like Extended I/O expansion bus. In addition,
the  82371MX  has an  IDE  interface  that  supports two  IDE  devices
providing  an interface  for IDE  hard disks  and CD  ROMS.  The MPIIX
integrates many common  I/O functions found in ISA  based PC systems-a
seven-channel DMA controller, two 82C59 interrupt controllers. an 8254
timer/counter, Intel  SMM power management support,  and control logic
for NMI  generation. Chip select  decoding is provided for  BIOS, real
time  clock,  and   keyboard  controller.  Edge/Level  interrupts  and
interrupt steering are supported for PCI plug and play compatibility.

The MPIIX also  provides the Extended I/O Bus  for a direct connection
to  Super   I/O  devices   providing  a  complete   PC-compatible  I/O
solution.  MPIIX also  provides support  for the  “Mobile  PC/PCI" DMA
Expansion protocol that enables the implementation of Docking Stations
with  full ISA and  PCI capability  without running  the full  ISA bus
across   the   docking    connector.   For   motherboard   Plug-n-Play
compatibility.   the  82371MX  also   provides  three   steerable  DMA
channels. up  to three steerable  interrupt lines, and  a programmable
chip select. The interrupt lines can be routed to any of the available
ISA interrupts.

The MPIIX’s power management function supports SMI# interrupt sources,
extensive clock control  (including Auto Clock Throttling), peripheral
power  idle detection  with access  traps. system  Suspend-to-DRAM and
Suspend-to-Disk.

***Versions:...
***Features:...
**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:
The Intel 82495XP cache controller and 82490XP cache RAM, when coupled
with a user-implemented memory  bus controller, provide a second-level
cache  subsystem  that eliminates  the  memory  latency and  bandwidth
bottleneck for  a wide  range of multiprocessor  systems based  on the
i860 XP  microprocessor. The CPU  interface is optimized to  serve the
i860  XP microprocessor  with zero  wait  states at  up to  50 MHz.  A
secondary cache  built from the  82495XP and 82490XP isolates  the CPU
from  the memory subsystem;  the memory  can run  slower and  follow a
different protocol than the i860 XP microprocessor.
         
***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...
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**SL9250  Page Mode Memory Controller (16/20MHz 8MB Max)        <oct88
***Info:...
***Versions:...
***Features:...
**SL9350  Page Mode Memory Controller (16/20/25MHz 16MB Max)    <oct88...
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