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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...
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**5571           (Trinity) Pentium PCI/ISA Chipset (75MHz)   <12/09/96
***Info:...
***Configurations:...
***Features:
o   Supports Intel Pentium CPU and other compatible CPU at 
    75/66/60/50MHz (external clock speed)
o   Supports the Pipelined Address Mode of Pentium CPU
o   Supports the Full 64-bit Pentium Processor data Bus
o   Supports 32-bit PCI Interface
o   Integrated Second Level (L2) Cache Controller
    - Write Through and Write Back Cache Modes
    - 8 bits or 7 bits Tag with Direct Mapped Cache Organization
    - Integrated 16K bits Dirty Ram
    - Supports Pipelined Burst SRAM
    - Supports 256 KBytes to 512 MBytes Cache Sizes
    - Cache Read/Write Cycle of 3-1-1-1-1-1-1-1 at 66 MHz
o   Integrated DRAM Controller
    - Supports 3 Banks of FP/EDO SIMMs, or 2 Banks of SDRAM DIMMs
    - Supports 2Mbytes to 384Mbytes of main memory
    - Supports 256K/512K/1M/2M/4M/16M x N FP/EDO/SDRAM DRAM
    - Supports 3V or 5V DRAM.
    - Supports Symmetrical and Asymmetrical DRAM.
    - Supports 32 bits/64 bits mixed mode configuration
    - Supports Concurrent Write Back for FP/EDO DRAM
    - Supports Mixed DRAM (FP/EDO/SDRAM) Technology
    - Supports CAS before RAS Refresh
    - Supports Relocation of System Management Memory
    - Programmable CAS# ,RAS#, RAMW# and MA Driving Current
    - Fully Configurable for the Characteristic of Shadow RAM (640 
      KBytes to 1 MBytes)
    - Supports FP DRAM 5-3-3-3(-3-3-3-3) Burst Read Cycles
    - Supports EDO DRAM 4/5-2-2-2(-2-2-2-2) Burst Read Cycles
    - Supports SDRAM 6/7-1-1-1(-2-1-1-1) Burst Read Cycles
    - Supports X-1-1-1/X-2-2-2/X-3-3-3 Burst Write Cycles
    - Supports 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
    - Supports SMM Mode of CPU
    - Supports CPU Stop Clock
    - Supports Break Switch
    - Supports Modem Ring Wakeup
    - Supports Automatic Power Supply Control
o   Provides High Performance PCI Arbiter.
    - Supports 3 internal masters and 5 external  PCI Masters
    - Supports Rotating Priority Mechanism
    - Hidden Arbitration Scheme Minimizes Arbitration Overhead.
    - Supports Concurrency between CPU to Memory and PCI to PCI.
o   Integrated Host-to-PCI Bridge
    - Supports Asynchronous/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
    - Supports 8 DW Deep Buffer for CPU-to-PCI Posted Write Cycles
    - Supports Pipelined Process in CPU-to-PCI Access
    - Supports Advance Snooping for PCI Master Bursting
    - Maximum PCI Burst Transfer from 256 Bytes to 4 Kbytes
    - Fast back-to-back
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-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   Built-in one 32-bit General Purpose Register
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
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
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
    - Supports PS/2 Mouse
    - Support Hot Key "Sleep" Function
o   Built-in Real Time Clock(RTC) with 256B CMOS SRAM
o   Fast PCI IDE Master/Slave Controller
    - Fully Compatible with PCI Local Bus Specification V2.1
    - Supports PCI Bus Mastering
    - Plug and Play Compatible
    - Supports Scatter and Gather
    - Supports Dual Mode Operation - Native Mode and 
      Compatibility Mode
    - Supports IDE PIO Timing Mode 0, 1, 2 of ANSI ATA Specification
    - Supports Mode 3 and Mode 4 Timing Proposal on Enhanced IDE 
      Specification
    - Supports Multiword DMA Mode 0, 1, 2
    - Separate IDE Bus
    - Two 8x32-bit FIFO for PCI Burst Read/Write Transfers.
o   Universal Serial Bus Controller
    - Host/Hub Controller
    - Two USB ports
o   On-Board Plug and Play Support
    - One Steerable DMA Channel
    - One Steerable Interrupt
    - One Programmable Chip Select
o   Supports the Reroutibility of the four PCI Interrupts
o   Supports Flash ROM
o   480-Pin BGA Package
o   0.5 μm CMOS Technology

**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
***Notes (Unverified Information!):...
***5600        c:Nov98...
***600         ?...
***620         c:Apr99...
***621         ?...
***630/630E/S  c:Feb00...
***630ST/ET    ?...
***633/633T    c:Mar01...
***635/635T    c:Mar01...
***640T        c:Mar01      ...
**Athlon etc...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
**VT82C580VP   Apollo VP,  Pentium/M1/K5 PCI/ISA System      <02/15/96
***Info:...
***Configurations:...
***Features:
o   PCI/ISA Green PC Ready
o   High Integration
    - VT82C585VP system controller
    - VT82C586  PCI to ISA bridge
    - Two instances of the VT82C587VP data buffers
    - Six TTLs for a complete main board implementation
o   Flexible CPU Interface
    - 64-bit P54C, K5  and M1 CPU interface
    - CPU external bus speed up to 66Mhz (internal 200Mhz and above)
    - Supports CPU internal write-back cache
    - Concurrent CPU/cache and PCI/DRAM operation
    - System management interrupt, memory remap and STPCLK mechanism
    - Cyril M1 linear burst support
    - CPU NA#/Address pipeline capability
o   Advanced Cache Controller
    - Direct map write back or write through secondary cache
    - Burst Synchronous (Pipelined or non-pipelined), asynchronous 
      SRAM, and Cache Module support
    - Eight-pin CWE# and GWE# control options
    - Flexible cache size: 0K/256K/512K/1M/2MB
    - 32 byte line size to match the primary cache
    - Integrated 10-bit tag comparator
    - 3-1-1-1 read/write timing for Burst Synchronous SRAM access at 
      66Mhz
    - 3-1-1-1-1-1-1-1 back to back read timing for Burst Synchronous 
      SRAM access at 66Mhz
    - Sustained 3 cycle write access for Burst Synchronous SRAM access 
      or CPU to DRAM and PCI bus post write buffers at 66Mhz
    - 3-2-2-2 (read) and 4-2-2-2 (write) timing for interleaved 
      asynchronous SRAM access at 66Mhz
    - Data streaming for simultaneous primary and secondary cache line 
      fill
    - System and video BIOS cacheable and write-protect
    - Programmable cacheable region and cache timing
    - Optional combined tag and alter bit SRAM for write-back scheme
o   Fast DRAM Controller
    - Concurrent DRAM writeback
    - Four Cache lines (16 quadwords) of CPU/cache to DRAM write 
      buffers
    - Fast Page Mode/EDO/Burst EDO/Synchronous-DRAM support in a mixed 
      combination
    - Mixed 256K/512K/1M/2M/4M/8M/16MxN DRAMs
    - 6 banks up to 512MB DRAMs (maximum four banks of Synchronous 
      DRAM)
    - Flexible row and column addresses
    - 64 bit or 32 bit data width in arbitrary mixed combination
    - 3.3v and 5v DRAM without external transceivers
    - Speculative DRAM access
    - Read around Write capability for non-stalled CPU read
    - Burst read and write operation
    - 4-2-2-2 on page, 7-2-2-2 start page and 9-2-2-2 off page timing 
      for EDO DRAMs at 50/60Mhz
    - 4-2-2-2 on page, 8-2-2-2 start page and 11-2-2-2 off page timing 
      for EDO DRAMs at 66Mhz
    - 5-1-1-1 on page, 8-1-1-1 start page and 10-1-1-1 off page timing 
      for Burst EDO DRAMs at 66Mhz
    - 5-2-2-2-3-1-2-2 back-to-back  access for EDO DRAM at 66Mhz
    - 5-1-1-1-3-1-1-1 back-to-back  access for BEDO DRAM at 66Mhz
    - BIOS shadow at 16KB increment
    - System management memory remapping
    - Decoupled and burst DRAM refresh with staggered RAS timing
    - Programmable refresh rate, CAS-before-RAS refresh and refresh on 
      populated banks only
o   Unified Memory Architecture
    - Supports VESA UMA handshake protocol
    - Compatible with major video/GUI products
    - Direct video frame buffer access
    - Satisfies maximum latency requirement from REQ# to GNT# and from 
      GNT# to REQ#
o   Intelligent PCI Bus Controller
    - 32 bit PCI interface
    - Supports 66Mhz and 3.3v/5v PCI bus
    - PCI master snoop ahead and snoop filtering
    - PCI master Peer Concurrency
    - Synchronous Bus to CPU clock with divide-by-two from the CPU 
      clock
    - Automatic detection of data streaming burst cycles from CPU to 
      the PCI bus
    - Five levels (double-words) of CPU to PCI posted write buffers
    - Byte merging in the write buffers to reduce the number of PCI 
      cycles and to create further PCI bursting possibilities
    - Zero wait state PCI master and slave burst transfer rate
    - PCI to system memory data streaming up to 132Mbyte/sec
    - Sixty-four levels (double-words) of post write buffers from PCI 
      masters to DRAM
    - Thirty-two levels (double-words) of prefetch buffers from DRAM 
      for access by PCI masters
    - Enhanced PCI command optimization (MRL, MRM, MWI, etc)
    - Complete steerable PCI interrupts
    - Supports L1 write-back forward to PCI master read to minimize 
      PCI read latency
    - Supports L1 write-back merged with PCI master post-write to 
      minimize DRAM utilization
    - Provides transaction timer to fairly arbitrate between PCI 
      masters
    - PCI-2.1 compliant
o   Enhanced Master Mode PCI IDE Controller
    - Dual channel master mode PCI supporting four Enhanced IDE 
      devices
    - Transfer rate up to 22MB/sec to cover PIO mode 4 and Multiword 
      DMA mode 2 drivers and beyond
    - Sixteen levels (doublewords) of prefetch and write buffers
    - Interlaced commands between two channels
    - Bus master programming interface for ATA controllers SFF-8038 
      rev.1.0 compliant
    - Full scatter and gather capability
    - Support ATAPI compliant devices
    - Support PCI native and ATA compatibility modes
    - Complete software driver support
o   Universal Serial Bus Controller
    - USB v1.0 and Intel Universal HCI v1.0 compatible
    - Eighteen levels(doublwords) of data FIFOs
    - Root hub and two function parts with built-in physical layer 
      transceivers
    - Legacy keyboard and PS/2 mouse support
o   Plug and Play Controller
    - Dual interrupt and DMA signal steering with plug and play control
    - Microsoft Windows 95 and plug and play BIOS compliant
o   Sophisticated Power Management Unit
    - Normal, doze, sleep, suspend and conserve modes
    - System event monitoring with two event classes
    - One idle timer, one peripheral timer and one general purpose 
      timer
    - More than ten general purpose Input/Output ports
    - Six external event input ports with programmable SMI condition
    - Complete leakage control when external component is in power off 
      state
    - Primary and secondary interrupt differentiation for individual 
      channels
    - Clock stretching, clock throttling and clock stop control
    - Multiple internal and external SMI sources for flexible power 
      management models
    - Two programmable output ports
    - APM 1.1 compliant
o   PCI to ISA Bridge
    - Integrated 82C206 peripheral controller
    - Integrated keyboard controller with PS2 mouse supports
    - Integrated DS12885 style real time clock with extended 128 byte 
      CMOS RAM
    - Integrated USB (universal serial bus) controller with hub and 
      two function ports
    - Integrated master mode enhanced IDE controller with enhanced 
      PCI bus commands
    - PCI-2.1 compliant with delay transaction
    - Four double-word line buffer between PCI and ISA bus
    - Supports type F DMA transfers
    - Fast reset and Gate A20 operation
    - Edge trigger or level sensitive interrupt
    - Flash EPROM and combined BIOS support
o   Built-in nand-tree pin scan test capability
o   0.6um mixed voltage, high speed and low power CMOS process
o   208 pin PQFP for VT82C585VP
o   208 pin PQFP for VT82C586
o   100 pin PQFP for VT82C587VP

**VT82C580VPX  Apollo VPX, VPX/97, Pentium with 66/75MHz Bus <01/09/97...
**VT82C590     Apollo VP2, VP2/97, Single-Chip Pentium 66MHz <01/10/97...
**VT82C597/AT  Apollo VP3, Single-Chip for Pentium with AGP  <10/03/97...
**VT82C598MVP  Apollo MVP3,Single-Chip 66/75/83/100MHz & AGP <09/22/97...
**VT8501       Apollo MVP4,Single-Chip 66-100MHz & AGP       <11/04/98...
**VT82C680     Apollo P6, Pentium-Pro Chip Set               <08/30/96...
**Support chips:
**VT82C505     Pentium/486 VL to PCI Bridge                  <05/30/94...
**VT82C586/A/B PCI Integrated Peripheral Controller          <10/13/96...
**VT82C596/A   Mobile PCI Integrated Peripheral Controller   <11/05/97...
**VT82C686A/B  PCI Super-I/O Integrated Peripheral Ctrl.     <02/10/98...
**Later P-Pro/II/III/Celeron...
**Later AMD...
**Other...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...

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