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**????? (Profusion) c:99
Chips:
Memory Access Controller (MAC)
Data Interface Buffer (DIB)
CPUs: 8x P-III Xeon Oct
DRAM Types: SDRAM PC100 2-way Interleave dual channel
Max Mem: 32GB
ECC/Parity: ECC
AGP speed: N/A
Bus Speed: 100
PCI Clock/Bus: 1/3 PCI-66/64
**800 series...
*Headland/G2...
*HMC (Hulon Microelectronics)...
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*OPTi...
**82C556/7/8N Viper-N Viper Notebook Chipset <05/25/95
***Notes:...
***Info:...
***Configurations:...
***Features:
CPU Interface
o Fully supports Intel’s 3.3V Pentium Processor and dual processor
configuration at 50, 60, and 66.667MHz
o Supports P54C, P55C, K5, and M1 processors
o Supports the Cyrix M1 Processor linear burst mode
o Three chip solution:
- 82C556 DBC (Data Buffer Controller) in a 160-pin PQFP (Plastic
Quad Flat Pack) or 176-pin TQFP (Thin Quad Flat Pack)
- 82C557 SYSC (System Controller) in a 208-pin PQFP or TQFP
- 82C558N IPC (Integrated Peripherals Controller) in a 208-pin
PQFP or TQFP
o Supports CPU address pipelining
Cache Interface
o Write-back/write-through, direct-mapped cache with size
selections: 64KB, 128KB, 256KB, 1MB and 2MB
o Support for synchronous and asynchronous SRAMs, pipelined sync-
hronous SRAMs, and Intel standard BSRAMs (BiCMOS SRAMs)
o Support for the Sony SONIC-ZWPT Cache Module
o Programmable cache write policy:
- Write-back
- Write-through
- Adaptive write-back
o Built-in tag auto-invalidation circuitry
o Fully programmable 3-2-2-2 asynchronous cache burst read/Write
cycles, 3-1-1-1/2-1-1-1 burst read/write support at 66/50MHz
o Options for cacheable, write protected. system and video BIOS
DRAM Interface
o Supports six banks of 64-bit wide DRAMs with 256KB, 512KB. 1MB,
2MB, 4MB, 8MB and 16MB addressing page mode DRAMs
o Supports DRAM configurations up to 512MB
o Supports 3-3-3-3 pipelined DRAM burst cycles
o 64-bit DRAM post write buffer
o Programmable drive currents for the DRAM control signals
o Hidden refresh with CAS-before-RAS refresh supported
o Support for two programmable non-cacheable memory regions
PCI Interface
o Interfaces the CPU and standard buses to both Peripheral Component
Interconnect (PCI) and VL bus operating in synchronous/async-
hronous modes, with VL bus always running at PCI bus operating
frequency
o Supports three PCI masters, one VL slave, and six ISA peripherals
o Supports PCI pre-snoop for PCI masters
o PCI byte/word merge support for CPU accesses to PCI bus,‘ and
support for PCI pre-fetch
o Burst mode PCI accesses to local memory supported
Miscellaneous
o Integrated two drive VL-based IDE controller
o Self-refresh supported during Suspend mode
o Support for flash ROM
o Shadow RAM option
o Transparent 8042 emulation for fast CPU reset and Gate A20
generation
o Supports Port 092h, fast Gate A20 and fast reset
o Includes a fully integrated 82C206 with external real-time clock
(RTC) interface
**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] ?
***Notes:...
**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)...
*UMC...
*Unresearched:...
*VIA...
**SLXXXX Other chips
SL9091 Video Clock Chip
**
**VT82C470 "Jupiter", Chip Set (w/o cache) 386 [no datasheet] ?
**VT82C475 "Jupiter", Chip Set (w/cache) 386 [no datasheet] ?
**VT82C486/2/3 "GMC chipset" [no datasheet, some info] ?...
**VT82C495/480 "Venus" Chip Set [no datasheet] ?
**VT82C495/491 ? EISA Chip Set [no datasheet, some info] <93...
**VT82C496G Pluto, Green PC 80486 PCI/VL/ISA System <05/30/94...
**VT82C530MV 3.3V Pentium chipset [no datasheet, some info]<05/30/94...
**VT82C570M Apollo Master, Green Pentium/P54C <06/22/95...
**VT82C580VP Apollo VP, Pentium/M1/K5 PCI/ISA System <02/15/96...
**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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