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**82C710   Universal Peripheral Controller                     c:Aug90
***Info:...
***Versions:...
***Features:
o   Low Power CMOS, 100pin PQFP Package
o   On Chip Power Management Features, Controllable Through Hardware 
    and/or Software
o   100% IBM PC-XT/AT Compatibility.
o   24 mA IBM AT/XT Bus Interface Buffers
o   Schmitt Trigger Input on Reset Pin 
o   1 x 16450 Compatible UART
o   1 IBM PC-XT/AT Compatible Enhanced (Bi-Directional) Parallel Port 
o   24 mA Parallel Port Output Drivers
o   IDE Interface (For Embeded AT & XT Hard drives)
o   General Purpose Chip Select
o   Real Time Clock chip Select
o   Fully uPD72065B and IBM-BIOS Compatible Floppy Disk Controller
    - Licensed NEC design
    - 48 mA floppy drive interface buffers
    - Data rate and drive control registers
    - Two pin programmable precompensation modes
    - Supports two floppy drives directly and up to four with an 
      external decoder
    - DMA enable logic
o   On-Chip Precision Analog Data Separator
    - +/-380ns at 500K bps
    - +/-740ns at 250K bps
    - Automatically selects one of three filters
    - Supports 250 Kb/s, 300 Kb/s, 500 Kb/s & 1 Mb/s data rates 
o   Single 24 MHz Crystal/Oscillator for UART and Floppy Disk 
    Controller


**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...
**F87000   Multi-Mode Peripheral Chip                         11/23/93...
**Other:...
**Disk:...
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*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82496/491     Cache Controller / Cache RAM (for P5 Pentium) 03/22/93
***Notes:...
***Info:
The 82496 Cache Controller and multiple 82491 Cache SRAMs combine with
the Pentium processor  to form a CPU Cache chip  set designed for high
performance  servers  and   function-rich  desktops.  The  high  speed
interconnect between  the CPU and cache components  has been optimized
to  provide zero-wait  state operation.   This CPU  Cache chip  set is
fully compatible  with existing software,  and has new  data integrity
features for mission critical applications.

The 82496 cache controller implements the MESI write-back protocol for
full multiprocessing support. Dual  ported buffers and registers allow
the 82496  to concurrently  handle CPU bus,  memory bus,  and internal
cache operation for maximum performance.

The 82491. is a customized high-performance SRAM that supports 32, 64,
and 128-bit  wide memory bus widths,  16, 32, and 64  byte line sizes,
and optional sectoring.  The data path between the  CPU bus and memory
bus  is separated  by the  82491, allowing  the CPU  bus  to handshake
synchronously,  asynchronously,  or   with  a  strobed  protocol,  and
allowing concurrent CPU bus and memory bus operations.

***Configurations:...
***Features:...
**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...
**GCK113        80386 AT Compatible Chip Set                   c:oct89
***Info:...
***Configurations:...
***Features:...
**GCK181        Universal PS/2 Chip Set                        c:Mar89...
**HT11          Single 286 AT Chip [no datasheet]               <Aug90...
**HT12/+/A      Single 286 AT Chip with EMS support            c:Aug90...
**HT18          80386SX Single Chip                            c:Sep91...
**HT21          386SX/286 Single Chip (20 MHz)                 c:Aug91...
**HT22          386SX/286 Single Chip (25 MHz)                 c:Sep91...
**HT25          3-volt Core Logic for 386SX                    c:Dec92...
**HT35          Single-Chip Peripheral Controller [partial info]     ?...
**HTK320        386DX Chip Set                                 c:Sep91...
**HTK340        "Shasta" 486 Chip Set                          c:Jun92...
**Support Chips:
**HT44          Secondary Cache                                c:Jun92...
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