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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...
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**IBM AT: MC146818 Real Time Clock <84
***Info:...
***Versions:...
***Features:
o Low-Power, High-Speed, High-Density CMOS
o Internal Time Base and Oscillator
o Counts Seconds, Minutes, and Hours of the Day
o Counts Days of the Week, Date, Month, and Year
o 3 V to 6 V Operation
o Time Base Input Options: 4.194304 MHz, 1.048576 MHz, or 32,768 kHz
o Time Base Oscillator for Parallel Resonant Crystals
o 40 to 200 uW Typical Operating Power at Low Frequency Time Base
o 4.0 to 20 mW Typical Operating Power at High Frequency Time Base
o Binary or BCD Representation of Time, Calendar, and Alarm
o 12- or 24-Hour Clock with AM and PM in 12-Hour Mode
o Daylight Savings Time Option
o Automatic End of Month Recognition
o Automatic Leap Year Compensation
o Microprocessor Bus Compatible [this means absolutely nothing]
o MOTEL Circuit for Bus Univerality
o Multiplexed Bus for Pin Efficiency
o Interfaced with Software as 64 RAM Locations
o 14 Bytes of Clock and Control Registers
o 50 Bytes of General Purpose RAM
o Status Bit Indicates Data Integrity
o Bus Compatible Interrupt Signals (IRQ)
o Three Interrupts are Separately Software Maskable and Testable
Time-of-Day Alarm, Once-per-Second to Once-per-Day
Periodic Rates from 30.5 us to 500 ms
End-of-Clock Update Cycle
o Programmable Square-Wave Output Signal
o Clock Output May Be Used as Microprocessor Clock Input
At Time Base Frequency /1 or /4
o 24-Pin Dual-In-Line Package
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
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*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
**VT82C580VP Apollo VP, Pentium/M1/K5 PCI/ISA System <02/15/96
***Info:...
***Configurations:...
***Features:...
**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
***Info:...
***Configurations:...
***Features:...
**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...
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