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**440 series:
***440FX (Natoma)       05/06/96...
***440LX (Balboa)       08/27/97...
***440BX (Seattle)      c:Apr'98...
***440DX (?)            c:?...
***440EX (?)            c:Apr'98...
***440GX (Marlinespike) 06/29/98...
***440ZX & 440ZX-66 (?) 01/04/99...
***440ZX-M (?)          05/17/99...
***440MX (Banister)     05/17/99...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
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**SL82C550   'Rossini' Pentium          [no datasheet]            c:95
***Notes:
from:
http://www.os2forum.or.at/english/info/os2hardwareinfo/pci_chips.html

The Symphony  "Rossini" Chipset  (Symphony Labs:  10AD/4269) (9/13/95)
This is apparently a low-cost alternative to the Triton chipset, as it
operates  with up  to 66  MHz external  clock rates,  up to  two CPUs,
pipelined or non-pipelined, synchronous or [conventional] asynchronous
SRAM cache,  EDO RAM, and  does dual-port busmastering IDE.   It will,
apparently, adjust the voltages to  its various (CPU, PCI, cache, RAM)
buses  to suit  their requirements,  and will  control up  to six  PCI
masters.   It consists  of the  SL82C551 cache/memory  controller, the
SL82C522 data path controller, and the SL82C555 system I/O controller.

***Configurations:...
**
**Support Chips:
**SL82C365    Cache Controller (for 386DX/SX)                     c:91...
**SL82C465    Cache Controller (for 486/386DX/SX)                 c:91...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
**W83877TF/TG/TD  WINBOND I/O (Multi I/O)                          c97
***Info:...
***Versions:...
***Features:
General
o  Plug & Play 1.0A Compliant
o  Support 8 IRQs (ISA), or 15 IRQs (Serial IRQ), 3 DMA channels, and 
   480 re-locatable address
o  Capable of ISA Bus IRQ Sharing
o  Compliant with Microsoft PC97 Hardware Design Guide
o  Support DPM (Device Power Management), ACPI
o  Report ACPI status interrupt by SCI signal from SCI pin, serial IRQ 
   IRQSER pin, or IRQ A~H pins
o  Single 24MHz/48MHZ clock input

FDC
o  Compatible with IBM PC AT disk drive systems
o  Variable write pre-compensation with track selectable capability
o  DMA enable logic
o  Support floppy disk drives and tape drives
o  Detects all overrun and underrun conditions
o  Built-in address mark detection circuit to simplify the read 
   electronics
o  FDD anti-virus functions with software write protect and FDD write 
   enable signal (write data signal was forced to be inactive)
o  Support up to four 3.5-inch or 5.25-inch floppy disk drives
o  Completely compatible with industry standard 82077
o  360K/720K/1.2M/1.44M/2.88M format; 250K, 300K, 500K, 1M, 2M bps 
   data transfer rate
o  Supports vertical recording format
o  Support 3-mode FDD, and its Win95 driver
o  16-byte data FIFOs

UART
o  Two high-speed 16550 compatible UARTs with 16-byte send/receive 
   FIFOs
o  MIDI compatible
o  Fully programmable serial-interface characteristics:
   - 5, 6, 7 or 8-bit characters
   - Even, odd or no parity bit generation/detection
   - 1, 1.5 or 2 stop bits generation
o  Internal diagnostic capabilities:
   - Loop-back controls for communications link fault isolation
   - Break, parity, overrun, framing error simulation
o  Programmable baud generator allows division of 1.8461 Mhz and 
   24 Mhz by 1 to (2^16-1)
o  Maximum baud rate up to 921k bps for 14.769 Mhz and 1.5M bps 
   for 24 Mhz

Infrared
o  Support IrDA version 1.0 SIR protocol with maximum baud rate up to 
   115.2K bps
o  Support SHARP ASK-IR protocol with maximum baud rate up to 57,600 
   bps

Parallel Port
o  Compatible with IBM parallel port
o  Support PS/2 compatible bi-directional parallel port
o  Support Enhanced Parallel Port (EPP) 
   − Compatible with IEEE 1284 specification
o  Support Extended Capabilities Port (ECP) 
   − Compatible with IEEE 1284 specification
o  Extension FDD mode supports disk drive B; and Extension 2FDD mode 
   supports disk drives A and B through parallel port
o  Enhanced printer port back-drive current protection

Others:
o  Programmable configuration settings
o  Immediate or automatic power-down mode for the power management
o  All hardware power-on settings have internal pull-up or pull-down 
   resistors as default value
o  Dedicated Infrared Communication Pins

Package
o  100-pin QFP (W83877TF/TG), and also 100-pin LQFP (W83877TD/TG)



**W83977F/G/AF/AG WINBOND I/O (Multi I/O)                          c97...
**W83977TF        WINBOND I/O (Multi I/O)                          c97...
**W83977EF        WINBOND I/O (Multi I/O)                          <98...
**W83977ATF       WINBOND I/O (Multi I/O)                          <98...
**
**Disk Controller:
**W83759/A/F/AF   Advanced VL-IDE Disk Controller                  <96...
**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...
**W86C456   I/O controller [no datasheet]                            ?
**W860551/P UART with FIFO and Printer Port Controller             <94...
**
**Other:...
*ZyMOS...
*General Sources:...