Browse Prior Art Database

Optimized Auto Configuration for Serial Port

IP.com Disclosure Number: IPCOM000121430D
Original Publication Date: 1991-Sep-01
Included in the Prior Art Database: 2005-Apr-03
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Harada, N: AUTHOR

Abstract

Disclosed is a method to assign a serial port address to each serial port in a personal computer. Recent ordinary machines have two serial ports as a standard. One is connected to the back panel connector and the other is for an internal adapter card. The port address for these ports is selectable. The serial port address is assigned depending on the adapter card variation.

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This is the abbreviated version, containing approximately 57% of the total text.

Optimized Auto Configuration for

Serial

Port

      Disclosed is a method to assign a serial port address to
each serial port in a personal computer.  Recent ordinary machines
have two serial ports as a standard.  One is connected to the back
panel connector and the other is for an internal adapter card.  The
port address for these ports is selectable.  The serial port address
is assigned depending on the adapter card variation.

      In the conventional system, the serial port address assignment
is determined in accordance with only the order or are selected by
the user himself or herself.  In the case where there are several
serial ports in the system, the address setting is very important and
it is apt to cause confusion when the user would like to use them in
an application.

      In the disclosed system, the address assignment is done by the
set-up program on a reference diskette which may be attached to the
system.  The set-up program will assign the address to each port
checking whether or not the adapter card is attached to the internal
serial connector, and what adapter is attached there.  Following is a
specified example of the system.

      Word definition is as follows:
  Serial port A : Physical port in the system unit. Connected to the
back panel connector.
  Serial port B : Physical port in the system unit.  Two kinds of
adapters are attached to this internally. If no adapter card is
attached to this, a user cannot use this port.
 ...