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M2228 	Video
M2301 	Video
M2302 	Video
M2308 	Video
M2401 	Video
M3125 	Video
M3135 	Video (super VGA)
M3143 	Video
M3145 	PCI Video
M3145 	VLB/PCI 3D Video
M3147V 	PCI Video
M3149 	Video
M3151 	PCI 3D Video, 4MB MAX
M3307   MPEG    Video Decoder Chip
M3309   MPEG-II Video Decoder Chip
M3321   MPEG-II A/V Decoder Chip
M3351   MPEG-II Video Decoder Chip
M4803 	PCI EIDE Controller
M5105 	VLB Super I/O Controller FDD/HDD/LPT/2xCOM/GAME	 
M5113   Superset of 5105, with PnP, ECP/EPP LPT and IR port
M5119 	Super I/O
M5123 	Super I/O   PnP/2xCOM/IR port/Keyboard (For Phoenix BIOS)
M5125 	same as  M5123 but for AMI
M513? 	Super I/O PnP/Keyboard
M5135F 	Super I/O PnP/Keyboard/IR
M514? 	Super I/O PnP/Keyboard/IR/2xCOM/  
M5213 	PCI IDE
M5217/H	Super I/O
M5219 	PCI? Bus mastering EIDE
M5225 	PCI? EIDE
M5229 	PCI? Bus mastering EIDE
M5235 	Super I/O
M5237 	PCI USB Host
M5240 	PCI? EIDE
M5241 	PCMCIA Bridge
M5242 	? 
M5244 	FDD
M5427 	PCI-AGP Bridge
M5451 	Audio 
M5453 	Modem 
M5455 	Audio  

*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82495DX/490DX DX CPU-Cache Chip Set                           <Sep91
***Notes:...
***Info:...
***Configurations:...
***Features:...
**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...
**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



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