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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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*HMC (Hulon Microelectronics)...
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*OPTi...
**82C898 System/Power Management Controller (non-cache)c:Nov94
***Notes:...
***Info:
Overview
The 82C898 provides a highly integrated solution for fully compatible,
high performance PC/AT platforms. The 82C898 supports 486SX/DX/DX2/DX4
and P24T microprocessors in the most cost effective and power
efficient designs available today. For high-end system applications,
this device offers optimum performance for systems running up to
50MHz.
Based fundamentally on OPTi’s proven 82C801 and 82C802 design
architectures, the 82C898 adds additional memory configurations and
extensive power management control for the processor and other
motherboard components.
The 82C898 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 Flat Pack) for low cost.
Power Management
Figure 2-1 [see datasheet] exemplifies the flexibility of an
82C898/82C602-based designs GREEN strategy. System designs can easily
accommodate both SLe and non-SLe CPUs. If an Intel non-SLe CPU is
used, SMI#, SMIAOT#, and FLUSH# are no connects. One design can easily
accommodate both types of processors with minimal changes for
upgrades.
***Configurations:...
***Features:...
**
**Support Chips:
**82C601/2 Buffer Devices <Nov94...
**82C822 PCIB (VLB-to-PCI bridge) c:94...
**Other:...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
**5596/5513 (Genesis) Pentium PCI Chipset <03/26/96
***Info:...
***Configurations:...
***Features:
o Supports Intel Pentium CPU and other compatible CPU at
66/60/50MHz (external clock speed)
o Supports VGA Shared Memory Architecture
- Direct Memory Accesses
- Shared Memory Area 0.5M, 1M, 1.5M, 2M, 2.5M, 3M, 3.5M, 4M.
- Built-in 2-Priority Scheme.
o Supports the Pipelined Address Mode of Pentium CPU.
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
- Supports Pipelined Burst SRAM.
- Supports 256 KBytes to 1 MBytes Cache Sizes.
- Cache Read/Write Cycle of 3-1-1-1 Pipelined Burst SRAM at 66
Mhz and 3-1-1-1-1-1-1-1 at back to back read cycle.
o Integrated DRAM Controller
- Supports 4 RAS lines, the memory size is from 4MBytes up to
512Mbytes.
- Supports 256K/512K/1M/2M/4M/16M x N 70ns FP/EDO DRAM
- Supports 4K Refresh DRAM
- Supports 3V or 5V DRAM.
- Supports Symmetrical and Asymmetrical DRAM.
- Supports 32 bits/64 bits mixed mode configuration
- Supports Concurrent Write Back
- Table-free DRAM Configuration, Auto-detect DRAM size, Bank
Density, Single/Double sided DRAM, EDO/ FP DRAM for each bank
- Supports CAS before RAS "Intelligent Refresh"
- Supports Relocation of System Management Memory
- Programmable CAS# Driving Current
- Fully Configurable for the Characteristic of Shadow RAM (640
KByte to 1 Mbyte)
o Supports EDO/FP 5/6-2-2-2/-3-3-3 Burst Read Cycles
o Two Programmable Non-Cacheable Regions
o Option to Disable Local Memory in Non-Cacheable Regions
o Shadow RAM in Increments of 16 KBytes
o Supports SMM Mode of CPU.
o Supports CPU Stop Clock.
o Supports Break Switch.
o Provides High Performance PCI Arbiter.
- Supports 4 PCI Master.
- Supports Rotating Priority Mechanism.
- Hidden Arbitration Scheme Minimizes Arbitration Overhead.
- Supports Concurrency between CPU to Memory and PCI to PCI.
o Integrated PCI Bridge
- Supports Asynchronous 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 Advance Snooping for PCI Master Bursting.
- Maximum PCI Burst Transfer from 256 Bytes to 4 KBytes.
o 388-Pin BGA Package.
o 0.5μm CMOS Technology.
**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:...
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