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Method and apparatus for automatic initialization of pluggable option cards    
United States Patent5491804   
Link to this pagehttp://www.wikipatents.com/5491804.html
Inventor(s)Heath; Chester A. (Boca Raton, FL); Langgood; John K. (Boca Raton, FL); Valli; Ronald E. (Pittsburgh, PA)
AbstractA data processing system includes a planar board having a central processing unit (CPU), a main memory unit, and input/output (I/O) sockets or slots, each adapted to receive a selected one of a plurality of different and/or similar option cards. Each card contains (or is connected to) and controls a respective peripheral device; and each card is pre-wired with an ID value corresponding to its card type. Software programmable option registers on each card store parameters such as designated default (or alternate) address information, priority levels, and other system resource parameters. A setup routine, during initial power-on, retrieves and stores the appropriate parameters in the I/O cards and also in slot positions in main memory, one position being assigned to each slot on the board. Each slot position is adapted to hold the parameters associated with the card inserted in its respective slot and the card ID value. That portion of main memory containing the slot positions is adapted to maintain the parameter and ID information by means of battery power when system power fails or is disconnected, i.e., a nonvolatile memory portion. Subsequent power-on routines are simplified by merely transferring parameters from the table to the card option registers if the status of all the slots has not not changed since the last power-down, system reset, or channel reset.
   














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Drawing from US Patent 5491804
Method and apparatus for automatic initialization of pluggable option cards - US Patent 5491804 Drawing
Method and apparatus for automatic initialization of pluggable option cards
Inventor     Heath; Chester A. (Boca Raton, FL); Langgood; John K. (Boca Raton, FL); Valli; Ronald E. (Pittsburgh, PA)
Owner/Assignee     International Business Machines Corp. (Armonk, NY)
Patent assignment
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Publication Date     February 13, 1996
Application Number     07/637,411
PAIR File History     Application Data   Transaction History
Image File Wrapper   Patent Term   Fees
Litigation
Filing Date     January 4, 1991
US Classification     710/7 710/10 713/2 714/25
Int'l Classification     G06F 013/00 G06F 007/04
Examiner     Kulik; Paul V.
Assistant Examiner    
Attorney/Law Firm     Brown, Jr.; Winfield J. Buchenhorner; Michael J. ,
Address
Parent Case     This application is a continuation of 07/296,387 filed Jan. 6, 1989, now U.S. Pat. No. 5,038,320, which is a continuation of 07/021,391 filed Mar. 13, 1987 which is now abandoned.
Priority Data    
USPTO Field of Search     395/275 395/325 395/500 395/575 395/700 395/725 395/800 371/7 371/11.1 371/11.2 371/11.3 371/66 340/825.06 340/825.07 340/825.52
Patent Tags     automatic initialization pluggable option cards
   
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 U.S. References
 
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Heath
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Garner
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Matelan
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Anderson
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Cheselka
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Market Size
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> $10B
$5B - $10B
$2B - $5B
$500M - $2B
$100M - $500M
$10M - $100M
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$0
 
$0   $2.5B   $5B   $7.5B   $10B
Market Share
Estimate the percentage of the relevant market sector this invention will capture:
75% - 100%
50% - 74.99%
25% - 49.99%
10 - 24.99%
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2 - 4.99%
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< 1%
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75% - 100%
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0.0%
 
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