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**82496/491 Cache Controller / Cache RAM (for P5 Pentium) 03/22/93
***Notes:...
***Info:...
***Configurations:...
***Features:
o High Performance Second Level Cache
- Zero Walt States at 66 MHz
- Two-way Set Associative
- Write-Back with MESI Protocol
- Concurrent CPU Bus and Memory Bus Operation
- Boundary Scan
o Pentium Processor
- Chip Set Version of Pentium Processor
- Superscalar Architecture
- Enhanced Floating Point
- On-chip SK Code and SK Data Caches
- See Pentium Processor User's Manual Volume 2 for more
Information
o Highly Flexible
- 256K to 512K with parity
- 32, 64, or 128-Bit Wide Memory Bus
- Synchronous, Asynchronous, and Strobed Memory Bus Operation
- Selectable Bus Widths, Line Sizes, Transfers, and Burst Orders
o Full Multiprocessing Support
- Concurrent CPU, Memory Bus, and Snoop Operations
- Complete MESI Protocol
- Internal/External Parity Generation/Checking
- Supports Read-for Ownership, Write-Allocation, and Cache-to-
Cache Transfers
**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...
**82C681/2/6/7 386/486WB EISA c:92
***Info:...
***Configurations:
82C681 (EBC) EISA Bus Controller
82C682 (MCC) Memory Cache Controller
82C686 (ISP) Integrated System Peripheral
82C687 (DBC) Data Bus Controller
***Features:...
**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...
*Symphony...
*TI (Texas Instruments)...
**TACT84500 AT Chip Set (486, EISA) [no datasheet, some info] c91
***Notes:...
**Other:...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...
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