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**82379AB     System I/O-APIC (SIO.A)                           <Dec94
***Notes:...
***Info:
The  82379AB System  I/O-APIC  (SIO.A) component  provides the  bridge
between  the PCI  bus  and the  ISA  expansion bus.  The 82379AB  also
integrates many of the common I/O functions found in today's ISA based
PC systems.  The 82379AB  incorporates the logic  for a  PCI interface
(master and  slave), ISA interface (master and  slave), enhanced seven
channel DMA controller  that supports data buffers to  isolate the PCI
bus  from  the  ISA  bus  and  to enhance  performance,  PCI  and  ISA
arbitration, 14 level interrupt controller, a 16-bit BIOS timer, three
programmable timer/counters, and  Non-Maskable Interrupt (NMI) Control
Logic. The 82379AB also provides decode for peripheral devices such as
the  Flash BIOS,  Real Time  Clock, Keyboard/Mouse  Controller, Floppy
Controller, two  Serial Ports,  one Parallel Port,  and IDE  Hard Disk
Drive. The 82379AB supports several Advanced Power Management features
such as  SMI# Interrupt.  The 82379AB  also supports a total  of 6 PCI
Masters,  and  can  support  up  to  4  PCI  Interrupts.  The  82379AB
incorporates an Advanced Programmable Interrupt Controller (APIC) that
communicates with the processor via a dedicated two data bit bus.

***Versions:...
***Features:...
**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
Chips:         
Memory Access Controller (MAC)  
Data Interface Buffer (DIB)
CPUs:          8x P-III Xeon Oct
DRAM Types:    SDRAM PC100 2-way Interleave dual channel
Max Mem:       32GB
ECC/Parity:    ECC
AGP speed:     N/A
Bus Speed:     100
PCI Clock/Bus: 1/3 PCI-66/64



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**UM82C852     Multi I/O For XT                                    <91
***Info:
The  Multi-I/O  chip, UM82C852  is  an  integrated  chip of  UM82C450,
UM82C11, UM82C8167. This  chip is a Multi-I/O for  PC/XT and PS2 model
30.

The   82C450  asynchronous   communications  element   (ACE)  performs
serial-to-parallel  conversion   on  data  characters   received  from
peripheral  devices or  modems, and  parallel-to-serial  conversion of
data characters transmitted by the CPU. The complete status of the ACE
can  be read  at  any time  during  functional operation  by CPU.  The
information obtained  includes the type and condition  of the transfer
operations being performed and error conditions.

The  82C11  parallel  port  provides  the user  with  a  bidirectional
parallel data  port that fully  supports the parallel  Centronics type
printer.

The 82C8167 real time clock includes an addressable real time counter,
56 bits  of static RAM with  an on chip oscillation  circuit which can
generate the 32,768 Hz time base.

The 82C852 is packaged in a 68-pin plastic leaded chip carrier.
***Versions:...
***Features:...
**UM82C206     Integrated Peripheral Controller                    <91...
**UM82c45x     Serial/Parallel chips                                 ?...
**Other chips:...
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