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*Intel...
**82495XP/490XP Cache Controller / Cache RAM (for i860) 06/05/91
***Notes:...
***Info:
The Intel 82495XP cache controller and 82490XP cache RAM, when coupled
with a user-implemented memory bus controller, provide a second-level
cache subsystem that eliminates the memory latency and bandwidth
bottleneck for a wide range of multiprocessor systems based on the
i860 XP microprocessor. The CPU interface is optimized to serve the
i860 XP microprocessor with zero wait states at up to 50 MHz. A
secondary cache built from the 82495XP and 82490XP isolates the CPU
from the memory subsystem; the memory can run slower and follow a
different protocol than the i860 XP microprocessor.
***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)...
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*OPTi...
**82C576/7/8 Viper Xpress [no datasheet] ?
***Configurations:...
**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] ?...
**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...
**VT82C505 Pentium/486 VL to PCI Bridge <05/30/94
***Info:...
***Versions:...
***Features:
o VL to PCI Bridge
- Combined with VT82C486 or VT82C496G for 80486SX/DX/DX2/DX4 based
PCI/VL/ISA Green-PC systems
- Combined with VT82C530MV chip set for Pentium/P54C/M1 based
PCI/VL/ISA Green-PC Systems
o Sophisticated Bridging Capabilities
- Supports PCI master to PCI slave cycles
- Supports PCI master to VL bus slave, system memory and ISA
slave cycles
- Supports VL master including CPU to PCI slave cycles
- Supports ISA master to VL or PCI slave cycles
- Supports multiple accelerated decoding schemes from VL master
including CPU to PCI and ISA slaves
- Supports CPUs with write-back level-one cache
- Concurrent CPU and PCI operation
- 4 level of CPU/VL to PCI post write buffers
- Automatic detection of data streaming burst cycles from CPU/VL
to PCI bus
- 4 level of post write buffers from PCI master to VL slave,
system memory and ISA slaves
- 4 level of prefetch buffers from system memory for access by PCI
masters
- Bursting capability for both PCI and CPU/VL bus
o Intelligent PCI Interface
- PCI 2.0 compliant
- Synchronous or divide-by-two CPU clock
- Hidden arbitration for up to four PCI masters
- Supports PCI preemption and time-out function
- Supports PCI master and slave initiated abort mechanism
- Supports PCI lock function
- Supports data parity generation for PCI master read cycles
- Supports data parity checking for PCI master write cycles
- Supports parity error and system error reporting on the PCI bus
- Supports PCI configuration cycles
- Interrupt steering and conversion to edge triggering for ISA
compatibility
o PCI Compliant IO Characteristics
o 0.8um high speed and low power CMOS process
o 160pin PQFP package
**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...
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*Winbond...
*ZyMOS...
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