[Home] [This version is outdated, a new version is here]
*Title...
*Search:...
*Read Me/FAQ/General Info...
*_IBM...
*ACC Micro...
*ALD...
*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...
**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91
***Notes:...
***Info:...
***Features:...
**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...
**82C491/392     486WB PC/AT Chipset                         <04/21/91
***Info:...
***Configurations:...
***Features:...
**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...
**85C471/407     Green PC ISA-VLB 486 Single Chip                  <94
***Info:
The  SiS85C47l, single chip  controller supports  Intel's 80486DX2/DX/
SX/SL Enhanced,  P24D/P24T/P24C CPU,  Cyrix's Cx486S2 (M6/M7)  CPU and
AMD's Am486DXL/DXLZ CPU.

The Si885C471 is a high performance, 100% PC/AT compatible single chip
controller,  designed for  cached/non-cached P24D/P24T/P24C,  M6/M7 or
486 PC systems. The high integration of the powerful cache controller,
the DRAM controller, the CPU  interfaces, the bus controller, the data
buffers and the peripheral controllers provides an easy and economical
solution for compact board manufacturing.

In addition to supporting burst reads  for the cache line fills of the
CPU, the  SiS85C47l is  capable of accepting  burst write data  of the
CPU's internal  cache dirty line(s) during CPU  write-back cycles. The
support of the  CPU burst write cycle is  optional through the control
of the Configuration Registers.  The SiS85C471 supports the cache size
up to l MB and the DRAM size up to 128 MB.

The SiS85C471  has a built-in  cache controller which  supports direct
mapped write-through/write-back  cache. The programmable  AT-bus clock
supports are compatible with  AT-bus timing requirements for different
PC systems.

In  addition, the  local bus  interfaces, the  integration of  the DMA
Controllers, Interrupt Controllers and Timers/Counters are designed to
be a higher performance, more compact, and more cost-effective product
for  a P24D/PZ4T/PZ4C,  486SX/DX/DX2/SL-Enhanced, Am486DXL/DXLZ,  or a
Cx48682 (M6/M7) PC/AT system.

The  SiS85C47I  provides power  saving  features  to allow  a  system,
through the  control of BIOS, to  reduce the CPU clock  frequency from
50MHz down to 0 MHz(STOP CLOCK) when the system is idle.

To support the SL-Enhanced  486, M6/M7, P24D/P24T/P24C's Am486DXL/DXL2
STPCLK/SMI features,  the SiS85C47l also implements  the corresponding
logics to support STPCLK /SMI for power saving.

The  SiSSSC471  supports the  VL-Bus  applications  including (1)  CPU
accesses VL-Bus  targets, (2) VL-Bus master  mode, and (3)  DMA or ISA
master accesses VL-Bus targets.

The  SiS85C471  provides  flexible  ways  in  configuring  the  system
depending   on  whether   cache  or   VESA  local   bus   masters  are
supported. The  different configurations require  different numbers of
external components.


***Configurations:...
***Features:
o   Fully IBM PC/AT Compatible. 80486DX2/DX/SX/SL Enhanced, P24D/P24T/
    P24C, M6/M7 and Am486DXL/Am486DXL2 Single Chip Controller
o   Supports L1 Cache Writeback CPU (P24T/P24D/M6/M7) systems
o   Direct Mapped Cache Controller
    - Write-Back or Write-Through Schemes
    - Bank Interleave or Non-Interleave Cache
    - 0/1 Wait State Cache Write Hit
    - Flexible Cache Size : 32/64/128/256/512KB or 1MB
    - 7 bits or 8 bits TAG addresses
    - Flexible 2-1-1-1, 3-1-1-1, 2-2-2-2 and 3-2-2-2 Burst 
      Read/Write Timing
o   Fast Page Burst Mode DRAM Controller
    - 4 Banks up to 128MB of DRAMs
    - 256K/512K/1M/2M/4M/16MXN DRAM Type
    - Programmable DRAM Speed
    - Double-sided SIMMs
o   Two Programmable Non-Cacheable Regions (64KB-4MB area)
o   CAS before RAS Transparent DRAM Refresh
o   BIOS/Video ROM Cacheable
o   Shadow RAM in Increments of 32KB
    - Option to Disable Cache in Shadow RAM Area
o   256K Memory Relocation
o   8042 Emulation of Fast A2OGATE and CPU Reset
o   Supports Port 92h
o   Hardware/Software De-Turbo Switch
o   Supports Two VL-Bus Master
o   Supports Flash Memory
o   Supports Double/Single frequency input
o   CPU Operating frequency 0-100 MHz
o   Supports Power Management Mode
    - Supports the SMM and the SMI
    - CPU Stop Clock Function
    - Four Power Saving States
    - Long and Short System Timers
    - Supports the APM control
    - Supports Break Switch control
    - Power Saving also on non-SM] CPU
    - More System Event Monitoring and the Power Saving Control
o   AT Bus State Machine and Controller
o   Synchronous/Asynchronous AT Bus Clock
o   Programmable AT Bus Speed
    - l/2,l/3,1/4,l/5,1/6,1/8,l/10 of Input Clock or 7.159MHz
o   Programmable Wait State Generation
    - 1 or 2 Wait States for l6-Bit Transfers
    - 4 or 5 Wait States for 8-Bit Transfers
o   Programmable I/O Recovery Time
o   Programmable driving current for the DRAM and the ISA bus signals
o   32-Bit Data Buffer Between CPU and AT System
o   Data Conversion and Swapping Logic for 32-/16-/8-Bit Transfers 
    During CPU and DMA Cycles
o   Data Latches for AT Read Cycles
o   Parity Generation and Detection Logic
o   Port B Register and NMI Logic
o   Integrated Peripheral Controllers
    - 8259A x2 / 8237x2 / 8254 / 74LS612
o   387/487SX and Weitek 3167/4167 Coprocessors Interface
o   208-Pin PQFP
o   0.8nm Low Power CMOS Technology

**85C496/497     486-VIP 486 Green PC VESA/ISA/PCI Chipset         <95...
**85C501/502/503 Pentium/P54C PCI/ISA Chipset                <01/09/95...
**5101/5102/5103 Pentium/P54C PCI/ISA Chipset                <04/02/95...
**5120           Pentium PCI/ISA Chipset (Mobile)            <01/28/97...
**5501/5502/5503 Pentium/P54C PCI/ISA Chipset                <04/02/95...
**5511/5512/5513 Pentium PCI/ISA                             <06/14/95...
**5571           (Trinity) Pentium PCI/ISA Chipset (75MHz)   <12/09/96...
**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...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...

(c) Copyright mR_Slugs Warehouse - All rights Reserved