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COM Port IO Address IRQ
1
3F8
4
2
2F8
3
3
3E8
4
4
2E8
3
To determine the GM56PCI-SM COM port number, open the GM56PCI-SM Control Panel
application (Start->Settings->Control Panel and double click the GM56PCI-SM Modem icon),
and select the Diagnostics tab. The COM port number to which the GM56PCI-SM modem is
assigned is listed here. Configure your application to use this COM port. For example, if the
GM56PCI-SM modem has been assigned COM 2, configure your application to communicate
through COM 2.
Some of the more common AT commands used by applications are:
Initialization*
AT&F
Hangup
ATH0
Dialing string
ATDT
Answer string
ATA
*Some games require that the modem refrain from performing error correction and data
compression. In these cases, use the initialization string AT&F\N0.
For a full list of AT commands supported by the GM56PCI-SM please refer to the on-line User's
Guide.
11
Un-installing and Upgrading the GM56PCI-SM Modem
GM56PCI-SM Un-Install Procedure
1. Open the Control Panel.
2. Select Add\Remove Programs.
3. In the dialog box, select Motorola GM56PCI-SM Modem Uninstall.
4. Select Add/Remove.
5. When asked to close the Control Panel window do so to allow the GM56PCI-SM Control Panel
applet to be removed.
6. Shut down the computer.