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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...
**
**Later chipsets (basic spec):
**440 series:...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
*Headland/G2...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
**5571           (Trinity) Pentium PCI/ISA Chipset (75MHz)   <12/09/96
***Info:...
***Configurations:...
***Features:...
**5581/5582      (Jessie)  Pentium PCI/ISA Chipset (75MHz)   <04/15/97...
**5591/5592/5595 (David)   Pentium PCI A.G.P. Chipset        <01/09/98...
**5596/5513      (Genesis) Pentium PCI Chipset               <03/26/96...
**5597/5598      (Jedi)    Pentium PCI/ISA Chipset           <04/15/97...
**530/5595       (Sinbad) Host, PCI, 3D Graphics & Mem. Ctrl.<11/10/98...
**540            (Spartan) Super7 2D/3D Ultra-AGP Single C.S.<11/30/99...
**55x            SoC (System-on-chip)                        <03/14/02...
**
**Support chips:
**85C206     Integrated Peripheral Controller [no datasheet]         ?...
**5595       Pentium PCI System I/O                          <12/24/97...
**950        LPC I/O                                         <07/16/99...
**Other:...
**PII/III/Pro...
**Athlon etc...
*Symphony...
**SL82C470   'Mozart' 486/386 EISA chipset                     c:Dec91
***Info:
The SL82C470 chip set provides  a very high performance.  highly inte-
grated and cost-effective implementation for personal computer systems
based on the  standard EISA bus.  It supports  both 386DX and 486DX/SX
CPUs over the entire performance range, from 20Mhz to 50Mhz.  The chip
set  can  operate in  either  "conventional"  or "concurrent"  config-
uration.  Under the conventional configuration, the cache subsystem is
dedicated to bus snooping when  a DMA or master device becomes active.
Under the concurrent  configuration, the CPU-cache operation continues
while  bus snooping  is  performed for  the  DMA or  master device  to
explore maximum  concurrency between the  CPU and the EISA  bus.  Only
ten  TTLs are  required for  a complete  motherboard design  under the
conventional  configuration in  addition to  the chip  set  and memory
devices.  Five  additional  TTLs   are  required  for  the  concurrent
configuration.  A complete EISA  system of either configuration can be
easily implemented on a baby AT sized motherboard.

The  SL82C470 chip  set consists  of three  160-pin PQFP  devices: the
SL82C471  integrated  cache/DRAM  controller,  the SL82C472  EISA  bus
controller and the SL82C473 DMA controller.

SL820471 Cache/DRAM Controller

The  SL82C47l  Cache/DRAM  controller  controls  the  cache  and  DRAM
accesses from  the CPU,  EISA/ISA masters and  DMA devices.   The chip
adapts a write-back cache  scheme to minimize the interference between
the CPU-cache and DMA/master  during their concurrent operations.  The
cache  size ranges from  64KB to  1MB with  advanced features  such as
2-1-1-1  burst  line fill.   Snoop-filtering,  local  bus support  and
programmable non-cacheable and  write-protected regions. The page mode
DRAM controller supports 1 to 4 banks of DRAMS up to 256MB.  A mixture
of 256KB, 1MB.  4MB and 16MB DRAMs is supported.  The video and system
BIOS  can  be  shadowed   or  cached  independently.   The  cache-DRAM
subsystem allows zero wait state burst mode DMA transfers to take full
advantage of the high bandwidth of the EISA bus.

The DRAM  data bus can either  be connected directly to  the CPU local
bus or  be buffered externally,  The control signals for  the external
buffers are generated by the SL82C471.

SL82C472 EISA Bus Controller

The  SL82C472  EISA  bus  controller translates  bus  control  signals
between the  CPU, EISA/ISA and DMA  masters and slaves.  The chip also
includes buffers  and byte/word swap  logic between the CPU  (or DRAM)
and the EISA bus. The  bus conversion and data alignment are performed
automatically.

The  SL82C472 includes two  8259 interrupt  controllers and  four 8254
timer channels  modified for 100%  EISA compatibility.  The  chip also
includes parity generation and check logic and NMI and timeout logic.

SL82C473 EISA DMA Controller

The SL82C473  DMA controller implements  seven EISA DMA  channels. the
system arbiter and the co-processor interface logic.  The DMA control-
ler  supports compatible  type  A,  type B  and  type  C (burst)  mode
operations  with  the  buffer  chaining  capability.   The  multilevel
rotating priority  arbitration with  fail-safe timeout  is implemented
for the  system arbiter.  Six  sets of slot-specific  master handshake
signals (MACK  and MREQ)  are provided  directly without  any external
components.

The address latches and buffers for  the EISA bus are also included in
the SL82C473.

***Configurations:...
***Features:...
**SL82C490   'Wagner' 486?              [no datasheet]               ?...
**SL82C550   'Rossini' Pentium          [no datasheet]            c:95...
**
**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...
**FE6500        CPU Core Logic for PS/2 Model 70/80 Compatibles   c:88
***Notes:...
***Info:...
***Configurations:...
***Features:...
**WD6400SX/LP   CPU Core Logic for PS/2 386SX Compatibles          <90...
**WD6500        CPU Core Logic for PS/2 386DX/486 Compatible       <90...
**WD7600A/LP/LV System Chip Set for 80286 or 80386SX         <11/25/91...
**WD7700/LP     System Chip Set for 80286 or 80386SX (Cache) <11/25/91...
**WD7855        System controller for 80386SX                <09/25/92...
**WD7900/LP/LV  System Chip Set for 80286 or 80386SX (Cache) <11/25/91...
**WD8110        System controller for 80386DX/486            <11/30/93...
**
**Support Chips:
**WD76C20x   Floppy, RTC, IDE and Support Logic Device       <11/25/91...
**WD76C30x   Perip. Ctrl, Interrupt Multiplex, and Clock Gen <11/18/91...
**WD7615     Desktop Buffer Manager                          <04/15/92...
**WD7625     Desktop Buffer Manager                          <10/01/92...
**WD8120LV   Super I/O [no datasheet]                                ?
**Other Chips:
SYSTEMS LOGIC/PERIPHERAL DEVICES
WD16C451, WD16C551 - Enhanced Asynchronous Communications Element (ACE) with Parallel Port
WD16C452, WD16C552 - Dual Enhanced Asynchronous Communications Element (ACE)
WD16C550             Enhanced Asynchronous Communications Element (ACE) with FIFOs
WD76C10AlLP/LV       ISA-Based System Controller for 80386SX and 80286 Desktop and Portable Compatibles
WD76C20/LV   Floppy Disk Controller, Real Time Clock, IDE Interface, and Support Logic Device 
WD76C30/LV   Peripheral Controller, Interrupt Multiplexer, and Clock Generator Device
WD7710/LP    ISA-Based System Controller with Cache for 80386SX and 80286 Desktop and Portable Compatibles
WD7910/LP    ISA-Based System Controller with Cache for 80386SX and 80286 Desktop and Portable Compatibles

IMAGING DEVICES
ICS90C61A          Dual Video/Memory Clock Generator     
ICS90C63   	   Dual Video/Memory Clock Generator 
ICS90C64   	   Dual Video/Memory Clock Generator 
WD90C00	   	   VGA Controller (8514/A clone, max 1MB, 1024x768x16, 800x600x256)                     
WD90C01 	   8514/A for laptops
WD90C10 	   VGA, 256KB
WD90C11, WD90C11A  Enhanced VGA Controller (max 512KB, 1024x768x16, 800x600x256)
WD90C20, WD90C20A  VGA Flat Panel Display Controller (800x600x16, 640x460x256, 32 shades gray)
WD90C22            VGA Flat Panel Display Controller (800x600x16, 640x460x256, 64 shades gray)
WD90C24/A/A2       SVGA, max 1MB, 1280x1024x16, 1024x768x16, LCD, VESA-LB, 3.3 or 5V
WD90C26            VGA Flat Panel Display Controller
WD90C30 	   High Performance Video Controller (max 1MB, 1024x768x256, 1024x768x16)
WD90C31 	   Accelerator Video Controller (max 1MB, 1024x768x256, 1280x1024x16)
WD90C33            Same as WD90C31 but with, max 2MB, VESA-LB, 1280x1024x256, 1280x1024x16)
WD90C55            VGA LCD Interface
WD90C56            VLBI (Video Local Bus Interface), for WD90C30/31, VESA not mentioned. 
WD9710 		   Pipelined, 32bit core, 64bit RAM, 24bit RAMDAC, PCI/VLB
WD9712 		   similar to WD9710



STORAGE DEVICES
WD10C01A            Winchester Disk Controller
WD10C27	    	    Data Separator
WD33C92A    	    Enhanced SCSI Bus Interface Controller
WD33C93B            Enhanced SCSI Bus Interface Controller
WD33C95A, WD33C96A  Enhanced Single-ended and Differential SCSI Bus Interface Controller
WD37C65C  	    Floppy Disk Subsystem Controller Device 
WD42C22C 	    Winchester Disk Subsystem Controller Device
WD60C318 	    Optical Disk Drive Encoder/Decoder 
WD60C40A  	    Peripheral Cache Manager Device
WD60C80 	    Error Detection and Correction Chip (EDAC)
WD61C23A 	    High Performance Hard Disk Controller
WD61C40A 	    Peripheral Cache Manager Device
WD7000 		    ESDI Controller (16-bit ISA)
WD7193 		    Fast SCSI-II PCI adapter, 33C296A-ZX chip
WD7197 		    Fast Wide version of WD7193
WD7296A 	    Fast Wide SCSI-II (PCI?), possibly WD34C296 chip




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