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**82C735   I/O Peripheral Controller With Printgine            c:Jul93
***Info:...
***Versions:...
***Features:
Floppy Disk Controller
o   Single-chip floppy solution
o   Software compatible with NEC 765B and Intel 82077
o   Perpendicular recording support
o   48mA disk drivers and Schmitt-trigger inputs
o   Direct support for two drives, and up to four drives with external 
    decoder
o   Enhanced digital data separator
o   No external filter components required
o   Support for 250KB/s, 300KB/s, 500KB/s and 1MB/sec data rates
o   Primary and secondary floppy address port selects

Serial Ports
o   Two NS16550 compatible UARTs
o   16-byte FIFO
o   Modem control circuitry
o   Optional PS/2 type mouse port logic operated under BIOS and 
    software driver control

IDE Interface
o   Provides a complete IDE interface for embedded hard disk drives.
o   Primary and secondary IDE address port selects.

Parallel Port----Printgine
o   Multiprotocol parallel port interface, P1284-compatible 
o   Compatible with IBM PC, XT, AT, and PS/2 architectures
o   Standard and bidirectional parallel port
o   Microsoft and Hewlett-Packard Extended Capabilities Port (ECP), 
    Enhanced 
    Parallel Port (EPP), and fast Centronics protocols support
o   Transfer rates up to 2MB/sec possible with fast protocols
o   Protocols implemented in hardware to reduce software overhead
o   24mA parallel port output drivers
o   128-byte FIFO

General
o   100-percent compatible with IBM PC, XT and AT architectures
o   24mA AT/XT bus interface buffers
o   Game port and general purpose chip select logic
o   On-chip power management features, controllable through hardware 
    and/or software
o   Configuration via software
o   100-pin QFP package

**82C835   Single CHIP 386sx AT Cache Controller               c:Apr91...
**F87000   Multi-Mode Peripheral Chip                         11/23/93
***Info:
The F87000  Multi-Mode Peripheral  Chip is a  companion to  the F8680A
PC/CHIP single-chip PC. By strapping  pins to select the desired mode,
the F87000 device becomes one of four integrated peripheral chips that
extend the functionality of PC/CHIP.

Chips and Technologies, Inc. has designed the F87000 chip specifically
for use  with the F8680A  microchip to accommodate  portable computing
devices   and  embedded   control   applications  where   integration,
conservation of board space, and power consumption are critical.

In  PCMCIA  card  implementations,  card buffering  and  isolation  is
recommended for  design robustness,  especially in rugged  use enviro-
nments.  The buffering ensures that  the PCMCIA card receives a strong
clean  signal, while the  isolation provides  both the  protection for
"hot card insertion" and is hardwired for turning off power to a card.
Hardware isolation,  supported with Power  Management SuperState code,
minimizes the system’s power  consumption.  PCMCIA card slots that are
not properly buffered and isolated run  a high risk of a system crash/
failure if the cards are inserted/removed while the slot is powered.

The PC/CHIP F87000 is designed to be used in four modes. 
o    Mode 1 ---- Single PCMCIA card buffering support provides:
     • 20-bit address buffer.
     • 16-bit bidirectional data buffer.
     • Buffering for five control signals.
o    Modes 2 and 3 ---- Dual PCMCIA card buffering support provides:
     • Individual address buffering (64MB each).
     • Individual data bus buffering.
     • Two OR gates.
o    Mode 4 ---- Multifunctional mode provides:
     • Keyboard circuitry interfacing to a 16 x 8 keyboard matrix.
     • Clock divider conversion of 14.31818MHz to 1.8432MHz output 
       (divide by 7.77).
     • Parallel printer port.
     • IDE interface.
     • 7-bit configuration ports plus external select for port 
       expansion.

***Versions:...
***Features:...
**Other:...
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*Contaq  . . . . . [no datasheets, some info]...
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**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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