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**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...
**82C802G/GP System/Power Management Controller (cached) c:93
***Notes:...
***Info:
The 82C802G/GP provides a highly integrated solution for fully
compatible, high performance PC/AT platforms. This chipset will
support 486SX/DX/DX2/DX4 and P24T microprocessors in the most cost
effective and power efficient designs available today. For power
users this chipset offers optimum performance for systems running up
to 50MHz.
Based fundamentally on OPTi’s proven 82C801 and 82C802 design
architectures, the 82C802G/GP adds additional memory configurations
and extensive power management control for the processor and other
motherboard components.
The 82C802G/GP supports the latest in write-back processor designs
from Intel, AMD, and Cyrix, as well as supporting the AT bus and VESA
local bus for compatibility and performance. It also includes an
82C206 Integrated Peripherals Controller (IPC), all in a single
208-pin PQFP (Plastic Quad Plat Pack) package for low cost.
Power Management Block
Figure 2-1 [see datasheet] exemplifies the flexibility of the
82C802G/GP/82C602 GREEN strategy. System designs can easily
accommodate both SLe and non-SLe CPUs. If an Intel non-SLe CPU is
used. SMI#, SMIACT#, and FLUSH# are no connects. One design can easily
accommodate both types of processors with minimal changes for
upgrades.
***Configurations:...
***Features:...
**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...
**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...
**Athlon etc...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...
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