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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)...
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**82C381/382     HiD/386             (386DX)                      c:89
***Info:
The  HiD/386 Chipset,  82C381  and 82C382D, support  high  integration
implementations of Direct Mapped  Cache with 32KB/64KB/128KB Cache for
25 and  33 MHz  386/AT Personal Computers.  Combined  with  the 82C206
Integrated  Peripherals Controller, it  integrates the  386/AT mother-
board to under 20 devices, plus memory.  It is designed to cost reduce
discrete and CHIPS’CS8230 based 82385 Cache 386/AT designs, as well as
boost the performance of these designs to 33 MHz, with >64KB Cache.

The 82681 provides system control logic and data bus conversion logic.
The  control logic consists  of 386  CPU control  logic, AT  Bus cycle
control, 387 Numeric Processor control logic, synchronous clock divide
logic and control of the local peripheral bus. The data bus conversion
logic consists of various 8, 16, 32 bit conversions for ROM cycles, AT
bus cycles and memory cycles.

The 820382D  performs the Memory  Management functions for  the HiD/AT
chipset. It  is designed to  optimize cost of high  performance 386/AT
systems with 64KB, l28KB or larger Direct Mapped Cache Memory. It also
implements logic to maintain compatibility  in the AT environment . It
provides a Page  Interleave backend for main DRAM memory,  in order to
improve  performance during  miss  cycles. It  also  has features  for
reducing system cost.

It minimizes  Cache Memory cost by  allowing the use of  slow SRAM; by
supporting single EPROM BIOS configurations; putting DRAM on the local
bus and  consequently reducing DRAM  speeds by 15ns typically;  and by
remapping 256K of DRAM between 640K and 1024K to top of main memory.

It provides a very flexible implementation of paging for the main DRAM
memory.   For even  bank configurations,  it provides  2-way  or 4-way
interleaving;  for odd  banks  it provides  paging.   This provides  a
flexible  approach to  increasing  the  size of  the  local memory  as
software demands increase, without imposing a penalty on performance.

Finally, memory performance is  optimized by shadow RAM techniques for
BIOS ROMs; concatenated pages for multiple hank configurations; paging
for odd banks; and variable page size for larger DRAMs.

System Architecture
The  HiD/AT   chipset  is   compatible  with  the   82C206  Integrated
Peripherals  Controller. Consequently,  with the  82C206, a  very high
integration  and very high  performance 386/AT  can be  implemented. A
typical motherboard  can be  designed with less  than 20  devices plus
memory.

For  larger  AT designs,  targeted  at  file-servers and  departmental
computers, designs with 8 or more slots can be supported with external
AT bus drivers.

***Configurations:...
***Features:...
**82C391/392     386WB PC/AT Chipset (386DX)                    <Dec90...
**82C461/462     Notebook PC/AT chipset [no datasheet]               ?...
**82c463         SCNB Single Ship Notebook                        c:92...
**82c465MV/A/B   Single-Chip Mixed Voltage Notebook Solution    <Oct97...
**82C481?/482?   HiP/486 & HiB/486 [no datasheet]                Oct89...
**82C491/392     486WB PC/AT Chipset                         <04/21/91...
**82C493/392     486SXWB                                     <10/21/91...
**82C495SX/392SX LCWB PC/AT chipset [no datasheet]                   ?...
**82C495SLC      DXSLC 386/486 Low Cost Write Back                c:92...
**82C495XLC      PC/AT Chip Set                                   c:93...
**82c496A/B      DXBB PC/AT Chipset                             <Mar92...
**82C496/7       DXBB PC/AT Chipset (Cached)                 <01/16/92...
**82C498         DXWB PC/AT chipset [no datasheet]                   ?...
**82C499         DXSC DX System Controller                        c:93...
**82C546/547     Python PTM3V                                     c:94...
**82C556/7/8     Viper [no datasheet]                                ?...
**82C556/7/8N    Viper-N  Viper Notebook Chipset             <05/25/95...
**82C556M/7M/8E  Viper-N+ Viper Notebook Chipset                  c:96...
**82C566/7/8     Viper-Max Chipset Scalable MultiMedia PC Solution   ?...
**82C571/572     486/Pentium                                      c:93...
**82C576/7/8     Viper Xpress  [no datasheet]                        ?...
**82C576/8/9     Viper XPress+ [no datasheet, some info]     <01/16/97...
**82C596/597     PTMAWB Pentium Adaptive Write-back (Cobra)       c:93...
**82C650/1/2     Discovery (Pentium Pro) [no datasheet]              ?...
**82C681/2/6/7   386/486WB EISA                                   c:92...
**82C683         386/486AWB EISA [no datasheet]                      ?...
**82C693/6/7     Pentium uP Write Back Cache EISA                 c:93...
**82C700         FireStar                                         c:97...
**82C701         FireStar Plus                                    c:97...
**82C750         Vendetta      [no datasheet]                        ?...
**82c801         SCWB2 DX Single Chip Solution                    c:92...
**82C802         SCWB2 PC/AT Single Chip [no datasheet]              ?...
**82C802G/GP     System/Power Management Controller (cached)      c:93...
**82C895         System/Power Management Controller (cached)   c:Sep94...
**82C898         System/Power Management Controller (non-cache)c:Nov94...
**
**Support Chips:
**82C601/2       Buffer Devices                                 <Nov94...
**82C822         PCIB (VLB-to-PCI bridge)                         c:94...
**Other:...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
**5597/5598      (Jedi)    Pentium PCI/ISA Chipset           <04/15/97
***Info:...
***Configurations:...
***Features:
o   Support Intel Pentium CPU and other compatible CPU host bus 
    at 50/55/60/66/75 MHz
o   Support CPU with MMX feature
o   Support the Pipelined Address Mode of Pentium CPU
o   Support the Full 64-bit Pentium Processor data Bus
o   Meet PC97 Requirements
o   Integrated Second Level (L2) Cache Controller
    - Write Back Cache Modes
    - 8 bits or 7 bits Tag with Direct Mapped Cache Organization
    - Integrated 16K bits Dirty RAM
    - Support Pipelined Burst SRAM
    - Support 256 KBytes and 512 KBytes Cache Sizes
    - Cache Hit Read/Write Cycle of 3-1-1-1
    - Cache Back-to-Back Read/Write Cycle of 3-1-1-1-1-1-1-1
o   Integrated DRAM Controller
    - Support 6 RAS lines (3 Banks) of FPM/EDO/SDRAM DIMMs/SIMMs
    - Support 2Mbytes to 384Mbytes of main memory
    - Support Cacheable DRAM Sizes up to 128 MBytes.
    - Support 256K/512K/1M/2M/4M/8M/16M/32M x N FPM/EDO/SDRAM DRAM
    - Support 64 Mb DRAM Technology
    - Support 3.3V or 5V DRAM.
    - Supports Symmetrical and Asymmetrical DRAM.
    - Support 32 bits/64 bits mixed mode configuration
    - Support Concurrent Write Back
    - Support CAS before RAS Refresh
    - Support Relocation of System Management Memory
    - Programmable CAS#, RAS#, RAMWE# and MA Driving Current.
    - Fully Configurable for the Characteristic of Shadow RAM (640 
      KBytes to 1 MBytes)
    - Support FPM DRAM 5-3-3-3(-3-3-3-3) Burst Read Cycles
    - Support EDO DRAM 5-2-2-2(-2-2-2-2) Burst Read Cycles
    - Support SDRAM 6-1-1-1(-2-1-1-1) Burst Read Cycles
    - Support X-1-1-1/X-2-2-2/X-3-3-3 Burst Write Cycles
    - Support 8 Qword Deep Buffer for Read/Write Reordering, Dword 
      Merging and 3/2-1-1-1 Post write Cycles
    - Two Programmable Non-Cacheable Regions
    - Option to Disable Local Memory in Non-Cacheable Regions
    - Shadow RAM in Increments of 16 KBytes
o   Integrated PMU Controller
    - Meet ACPI Requirements
    - Support Both ACPI and Legacy PMU
    - Support Suspend to Disk
    - Support SMM Mode of CPU
    - Support CPU Stop Clock
    - Support Power Button for ACPI function
    - Support Automatic Power Control for system power off function
    - Support Modem Ring-in, RTC Alarm Wake up
    - Support Thermal Detection
    - Support GPIOs, and GPOs for External Devices Control
    - Support Programmable Chip Select
o   Provides High Performance PCI Arbiter.
    - Support up to 4 PCI Masters
    - Support Rotating Priority Mechanism
    - Hidden Arbitration Scheme Minimizes Arbitration Overhead.
    - Support Concurrency between CPU to Memory and PCI to PCI.
o   Integrated Host-to-PCI Bridge
    - Support Asynchronous and Synchronous PCI Clock
    - Translates the CPU Cycles into the PCI Bus Cycles
    - Provides CPU-to-PCI Read Assembly and Write Disassembly 
      Mechanism
    - Translates Sequential CPU-to-PCI Memory Write Cycles into PCI 
      Burst Cycles
    - Zero Wait State Burst Cycles
    - Support IDE Posted Write
    - Support Pipelined Process in CPU-to-PCI Access
    - Support Advance Snooping for PCI Master Bursting
    - Maximum PCI Burst Transfer from 256 Bytes to 4 KBytes
o   Integrated Posted Write Buffers and Read Prefetch Buffers to 
    Increase System Performance
    - CPU-to-Memory Posted Write Buffer (CTMFF) with 8 QW Deep, 
      Always Sustains 0 Wait Performance on CPU-to-Memory.
    - CPU-to-Memory Read Buffer with 4 QW Deep
    - CPU-to-PCI Posted Write Buffer(CTPFF) with 8 DW Deep
    - PCI-to-Memory Posted Write Buffer(PTHFF) with 8 QW Deep, Always 
      Streams 0 Wait Performance on PCI-to/from-Memory Access
    - PCI-to-Memory Read Prefetch Buffer(CTPFF) with 8 QW Deep
o   Integrated Video/Graphics Accelerator
    - Support 32-bit PCI local bus standard revision 2.1
    - Built-in an enhanced 64-bit BITBLT graphics engine
    - Support tightly coupled host interface to VGA to speed up GUI 
      performance and the video playback frame rate
    - Support direct access to video memory to speed up GUI 
      performance and the video playback frame rate
    - Shared System Memory Area 0.5MB, 1MB, 1.5MB, 2MB, 2.5MB, 3MB, 
      3.5MB, 4MB
    - Built-in programmable 24-bit true-color RAMDAC with reference-
      voltage generator
    - Built-in dual-clock generator
    - Built-in monitor-sense circuit
    - Built-in Phillips SAA7110/SAA7111, Brooktree Bt815/817/819A
      (8 -bit SPI mode 1,2) video decoder interface
    - Built-in Standard feature connector logic support
o   Integrated PCI-to-ISA Bridge
    - Translates PCI Bus Cycles into ISA Bus Cycles
    - Translates ISA Master or DMA Cycles into PCI Bus Cycles
    - Provides a Dword Post Buffer for PCI to ISA Memory cycles
    - Two 32 bit Prefetch/Post Buffers Enhance the DMA and ISA Master 
      Performance
    - Fully Compliant to PCI 2.1
o   Enhanced DMA Functions
    - 8-, 16- bit DMA Data Transfer
    - ISA compatible, and Fast Type F DMA Cycles
    - Two 8237A Compatible DMA Controllers with Seven Independent 
      Programmable Channels
    - Provides the Readability of the two 8237 Associated Registers
    - Support Distributed DMA
o   Built-in Two 8259A Interrupt Controllers
    - 14 Independently Programmable Channels for Level- or Edge-
      triggered Interrupts
    - Provides the Readability of the two 8259A Associated Registers
    - Support Serial IRQ
o   Three Programmable 16-bit Counters compatible with 8254
    - System Timer Interrupt
    - Generates Refresh Request
    - Speaker Tone Output
    - Provides the Readability of the 8254 Associated Registers
o   Built-in Keyboard Controller
    - Hardwired Logic Provides Instant Response
    - Support PS/2 Mouse interface
    - Support Hot Key "Wake-up" Function
    - Capable of Enable/Disable Internal KBC and PS2 Mouse
o   Built-in Real Time Clock(RTC) with 256B CMOS SRAM
    - Built-in up to one Month Alarm for ACPI
o   Fast PCI IDE Master/Slave Controller
    - Bus Master Programming Interface for ATA Windows 95 Compliant 
      Controller
    - Support PCI Bus Mastering
    - Plug and Play Compatible
    - Support Scatter and Gather
    - Support Dual Mode Operation - Native Mode and Compatibility Mode
    - Support IDE PIO Timing Mode 0, 1, 2 ,3 and 4
    - Support Multiword DMA Mode 0, 1, 2
    - Support Ultra DMA/33
    - Two Separate IDE Bus
    - Two 16 Dword FIFO for PCI Burst Transfers.
o   Universal Serial Bus Host Controller
    - OpenHCI Host Controller with Root Hub
    - Two USB ports
    - Support Legacy Devices
    - Support Over Current Detection
o   Support I2C serial Bus
o   Support the Reroutibility of the four PCI Interrupts
o   Support 2Mb Flash ROM Interface
o   Support Signature Analysis for automatic test for VGA controller
o   Support NAND Tree for ball connectivity testing
o   553-Balls BGA Package
o   0.35μm 3.3V Technology

**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...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...

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