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**82489DX Advanced Programmable Interrupt Controller 10/12/92
***Notes:...
***Info:...
***Versions:...
***Features:...
**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...
*Headland/G2...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
**82C556M/7M/8E Viper-N+ Viper Notebook Chipset c:96
***Notes:...
***Info:...
***Configurations:...
***Features:
System
o 100% PC/AT compatible
o Supports 3.3V Intel Pentium 75/90/100/120 processors at bus
frequencies up to 66MHz
o Supports Cyrix 6x86 processor
DRAM
o Full 64-bit FPM/EDO DRAM controller
- Supports 2-2-2 EDO pipeline at 66MHz bus speed
- Supports 5V or 3.3V DRAM with-out buffers
- Supports up to 512MB
- Controls up to 6 banks
- Post write buffer
o Selectable current drive for DRAM bus
Cache
o L1 Cache supports write-through and write-back modes
o Power managed L2 Cache
- 64KB-2MB cache
- Write-back or write-through modes
- 2-1-1-1 synchronous cache cycles
- 3-1-1-1 pipelined synchronous cache cycles
- Combined tag/dirty SRAM option
ISA/VL/PCI Bus
o Integrated PCI bus with operation up to 33MHz; supports up to
three masters
o CLKRUN# support for PCI
o Distributed DMA support (software-based)
o 100% AT-compatible ISA bus; 3.3V or 5V operation, also supports
ISA bus masters
o VL bus support (slave only)
o Integrated Local Bus IDE supports four drives, which can be bus
masters, modes 4 and 5 supported
Power Management
o Advanced Power Management Unit
o Full CPU System Management Mode (SMM) support
o Full CPU power control through "clock throttling"
o Full system clock control, even CPU clock can be stopped during
APM doze mode
o Both hardware and software controlled power management
o Full peripheral power control
o 13 flexible peripheral timers
o Sixteen power control pins
o I/O trapping captures address and data
o Distributed DMA support (software-based)
o Full peripheral activity tracking
o Automatic peripheral power-up/power-down features
o Full suspend current leakage control
o 36 Power Management Interrupt (PMI) sources
o Eight external power management interrupt sources
o Supports SMBASE re-programmability that allows the cache to be
maintained during system management mode, avoiding cache fills
after returning from SMM
o Proprietary automatic internal pull-up/pull-down resistors
activated only when needed to reduce power consumption
Thermal Management
o Advanced Thermal Management Unit
o Internal mechanism tracks CPU activity and initiates cool down
mode before CPU temperature reaches a damaging level
o External sensor option
Packaging
o 82C556M Data Buffer
- 176 pin TQFP (0.5mm pin spacing)
o 82C557M System Controller
- 208 pin TQFP (0.5mm pin spacing)
o 82C558E Peripheral Controller
- 208 pin TQFP (0.5mm pin spacing)
82C602A RTC/Buffer Companion Chip
o Integrated Real-Time Clock
o Based on Benchmark Bq3285
o 256 bytes battery-backed memory
o Integrates multiplexing/demultiplexing logic, latches, and
buffers
o Eliminates most/all TTL in typical synchronous cache system
o 100 pin TQFP package (0.5mm pin spacing)
o Also available in 100 pin PQFP
**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] ?...
**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...
**SL9251 80386SX Page Interleave Memory Controller <04/13/90
***Info:
The SL9251 Memory Controller supports PC/AT systems based on Intel's
80386SX microprocessor. It is a member of VIA's FlexSet family which
utilizes the same core logic across the entire PC/AT spectrum. The
SL9251 is backward compatible with existing memory controllers for the
80386SX (SL9250). Boards designed using the SL9250 can be used with
the new SL9251 without modifications and with existing BIOS. In order
to take advantage of the SL9251's many new programmable features,
minor board modification and a modified BIOS is required for enhanced
performance.
The SL9251 offers the advanced memory control functions and features
needed to develop high performance PC/AT systems without using
external TTL Logic. The SL9251 supports two-way and 4-way page
interleave mode for 80386SX based designs. The Page interleave option
can be enabled or disabled using the configuration registers. All
memory banks which are interleaved use the same type of
memory. Designers can enable the staggered RAS option during refresh,
which minimizes power surge. Both pipeline and non-pipeline modes are
supported by enabling or disabling the next address controls, and
providing ready at the correct time.
***Versions:...
***Features:...
**SL9252 80386SX System and Memory Controller <06/12/90...
**SL9350 80386DX Page Mode Memory Controller (16-25MHz 16MB) ?...
**SL9351 80386DX Page Interleave Memory Controller (33MHz) ?...
**SL9352 80386DX System and Memory Controller <06/12/90...
**SLXXXX Other chips...
**
**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...
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