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**93C488         5x86/486 Single Chip PCI controller            <Aug96
***Info:
ALD93C488 is  the worlds  first single chip  486/5x86 core  logic that
supports  Pipeline  Burst/Burst (PB)  Synchronous  SRAM  for L2  cache
implementation.   This  innovative feature  results  in much  superior
performance than  the previous generation core logic  design that uses
Asynchronous SRAM  for L2  cache. ALD93C488 also  features one  of the
highest integration in  the market and requires only  DRAM, BIOS and 9
pieces TTL  to complete a cost-effective PCI/ISA  system that supports
all available 486 pinout CPUs up to bus speed of 50 MHz.

Employing  state-of-the-art  0.6  Micron  CMOS  technology,  ALD93C488
integrates the  PB Cache  Controller, DRAM Controller,  ISA Peripheral
Controllers  ( Interrupt  Controller,  DMA Controller,  Timer/Counter,
Real-time Clock and  Keyboard Controller ), PCI and  ISA Interface and
an Enhanced Local Bus IDE Interface  into a single 208 QFP ( Quad Flat
Pack ) IC.

Applying  the same  technique as  the latest  Pentium systems,  the PB
Cache  Controller achieves  3,1,1,1  burst cycle  with Pipeline  Burst
Synchronous SRAM. Write  Back Cache Policy is employed  for better CPU
bandwidth utilization. Cache  size can range from 128 KB  to 1 MB. The
DRAM  Controller supports  Page, Fast  Page and  EDO DRAM  for maximum
compatibility and ultimate performance. Four  banks of DRAM, from 1 MB
to 256  MB, can  be accessed, with  Auto-detection of memory  type and
size.

The  PCI Interface meets  the requirements  of PCI  Specifications 2.1
(5V). To  support PCI cards  that have on-board intelligence,  two PCI
Bus Masters can  be used.  In addition to  Host-to-PCI Byte Merging, a
4-level Host-to-PCI Write Buffer  is designed to ensure maximum system
throughput.  The built-in Enhanced Local Bus IDE Interface supports up
to 4 IDE devices (PIO  Mode 4 timing).  Advanced features like Address
Swapping  between  Primary  and   Secondary  IDE  Ports  and  separate
Master/Slave modes are implemented.  To make computers environmentally
friendly,  ALD93C488  is  equipped  with integrated  power  management
technique to stop or slow down the CPU.

***Configurations:...
***Features:...
*ALi...
*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**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...
*Symphony...
*TI (Texas Instruments)...
*UMC...
**Other chips:
***Video:...
***Disk:...
***Peripheral:...
***Other:
UM3750A         Programmable 12-bit Encoder/Decoder
UM6502/07/12    8-bit Microprocessor 1,2,3,4 MHz Versions
UM6502E         8-bit Microprocessor 1,2,3,4 MHz Versions
UM8048/35/49/39 Microcontroller
UM8051/31       Microcontroller
UM74HCT590      8 bit Binary Counter with Output Registers
UM74HCT646      Octal Bus Transceiver and Register

UM2332/UM2333/UM2364  Mask ROM 
UM2366/A              Mask ROM
UM23128/A             Mask ROM
UM23256/A             Mask ROM
UM2147/UM2148/UM2149  SRAM
UM6104/UM6104-1       SRAM
UM6114/UM6116-2/-3/-4 SRAM
UM6116-5/UM6164       SRAM
UM6167/UM6168         SRAM

UM9001/UM9003AF Network?
UM9007F/UM9008  Network?
UM9009          Network?
UM9017F/UM9018  Ethernet
UM9026          Fast Ethernet
UM9090          Network?


*Unresearched:...
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*VLSI...
*Western Digital...
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*ZyMOS...
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