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**82C110   IBM PS/2 Model 30/Super XT                                ?
***Notes:...
***Info:
The 82C110 is a single chip implementation of most of the system logic
necessary to implement a super XT compatible system with PS/2 Model 30
functionality using either an  8086 or 8088 microprocessor. The 82C110
can  be used  with either  8  or 16-bit  microprocessors.  The  82C110
includes features  which will enable  the PC manufacturer to  design a
super PS/2 Model 30/XT  compatible system with the highest performance
at  10  MHz  zero  wait   state  system  with  an  8086,  the  highest
functionality  with  dual  clock  and  2.5 MB  DRAM  {with  integrated
Extended Memory  System control  logic}, the highest  integration with
the lowest component count SMT design.

The 82C110 can be combined with-CHIPs’ 82C601 Multifunction Controller
and 82C451 VGA Graphics Controller to provide a high performance, high
integration PS/2 Model 30 type system.

The 82C110 supports most of the peripheral functions on the PS/2 Model
30 planar board; 8284 compatible  clock generator with the option of 2
independent  oscillators, 8288 compatible  bus controller,  8237 comp-
atible  DMA  controller, 8259  compatible  interrupt controller,  8254
compatible  timer/counter,  8255 compatible  peripheral  I/O port.  XT
Keyboard interface, Parity Generation and Checking for DRAM memory and
memory controller for DRAM memory sub-system.

The  82C110 enables  the  user to  add  PS/2 Model  30 superset  func-
tionality on the planar board: dual clock, with synchronized switching
between  the two,  clocks.  built-in  Lotus-Intel-Microsoft  (LIM) EMS
support for up to 2.5 Megabytes of DRAM.

The  82C110 supports a  very flexible  memory architecture.   The DRAM
controller  supports 64K,  256K  and  1M DRAMs.   These  DRAMs gen  be
organized in  four banks of up  to a maximum  of 2.5 MB on  the planar
board. The  2.5 MB memory can  be implemented with  2 banks of 7M  X 1
DRAMs, partitioned locally as 540KB of real memory and 1,875 MB of EMS
memory. The 82C110 is packaged in a 100-pin plastic flatpack.

***Configurations:...
***Features:...
**82C235   Single Chip AT (SCAT)                                   c89...
**82C836   Single Chip 386sx (SCATsx)                              <91...
**F8680/A  PC/CHIP Single-Chip PC                                  c93...
**
**Support Chips:
**64200    (Wingine) High Performance 'Windows Engine'         c:Oct91...
**82C206   Integrated Peripheral Controller                        c86...
**82C601/A Single Chip Peripheral Controller                 <08/30/90...
**82C607   Multifunction Controller                             <Jun88...
**82C710   Universal Peripheral Controller                     c:Aug90...
**82C711   Universal Peripheral Controller II                  c:Jan91...
**82C712   Universal Peripheral Controller II                  c:Jan91...
**82C721   Universal Peripheral Controller III                 c:May93...
**82C735   I/O Peripheral Controller With Printgine            c:Jul93...
**82C835   Single CHIP 386sx AT Cache Controller               c:Apr91
***Info:
The 82C835 interfaces directly with the 386sx and has been designed to
work  closely with  the 82C836  single chip  AT (SCAT-sx).  The 82C835
contains  a 386sx  cache  controller incorporating  the cache  control
logic and  tag RAM.  Also included are  several programmable registers
provided for configuration options. The ability to configure the cache
organization (Two-Way Set-Associative or Direct Mapped) and size (16KB
or 32KB) allows a flexible selection of external data SRAM.

In addition to the cache  controller, the 82C835 integrates the AT I/O
channel  command and  address  buffers and  the corresponding  control
logic. Many existing 80386sx system implementations require the use of
external buffers,  latches, and transceivers to drive  and receive the
commands and addresses.  These systems also require external SSI logic
to control the operation of these buffers. Systems will typically save
six  to seven  external TTL  buffers and  five to  six SSI  gates when
implementing the channel interface with the 82C835. By integrating the
channel  drivers and  logic, the  82C835 reduces  the system  size and
complexity.

***Versions:...
***Features:...
**F87000   Multi-Mode Peripheral Chip                         11/23/93...
**Other:...
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*Contaq  . . . . . [no datasheets, some info]...
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*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82395SX     Smart Cache                                     12/17/90
***Notes:...
**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...
**
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**440 series:...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
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