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   alt.os.development      Operating system development chatter      4,255 messages   

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   Message 2,267 of 4,255   
   Joe Monk to All   
   Re: serial ports galore   
   16 Jun 21 03:19:18   
   
   From: joemonk64@gmail.com   
      
   Remember, COM ports are tied to IRQs. IRQ3/4.   
      
   There are only 4 because thats all the 8250 UART could provide, and the 8259   
   PIC could only give up two IRQs.   
      
   If you use a driver, such as a digiboard, then it could handle more via   
   software interrupt...   
      
   Joe   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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