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**82396SX     Smart Cache                                     12/17/90
***Notes:...
***Info:...
***Versions:...
***Features:...
**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...
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**W83759/A/F/AF   Advanced VL-IDE Disk Controller                  <96
***Notes:...
***Info:...
***Versions:...
***Features:...
**W83769          Local Bus IDE Solution                           <94...
**
**UARTS:
**W86C250A  UART (equivalent of INS8C250A) [no datasheet]
**W86C450/P Universal Asynchronous Receiver/Transmitter         <Jul89...
**W86C451   I/O controller for IBM PC/AT/XT                     <Jul89...
**W86C452   I/O controller for IBM PC/AT                         Jul89
***Info:...
***Versions:...
***Features:
o  Easily interfaces to most popular microprocessors.
o  Dual-channel version of W86C450
o  Centronics printer interface
o  Independently controlled transmit, receive, line status, and data 
   set interrupts.
o  Programmable baud generator allows division of any input clock 
   by l to (2^16 -l) and generates the internal 16 x clock.
o  Independent receiver clock input.
o  MODEM control functions (CTS, RTS, DSR, DTR. RI. and DCD).
o  Fully programmable serial-interface characteristics:
   - 5, 6, 7. or 8-bit characters
   - Even, odd. or no-parity bit generation and detection
   - 1, 1.5 or 2-stop bit generation
o  False start bit detection.
o  TRl-STATE TTL drive capabilities for bidirectional data bus and 
   control bus on each channel
o  Internal diagnostic capabilities:
   - Loopback controls for communications link fault isolation
   - Break, parity, overrun, framing error simulation.
o  Fully prioritized interrupt system controls.

**W86C456   I/O controller [no datasheet]                            ?
**W860551/P UART with FIFO and Printer Port Controller             <94...
**
**Other:...
*ZyMOS...
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