Quatech QSP-200/300 - Manual (Page 31)

other. If this option is omitted, the default setting is RTS-CTS modem control
handshake disabled. See the Hardware Information section for more information.
U instructs the Enabler to disable the QSP-200/300's interrupt status register and enable
the Scratchpad registers of the individual UARTs. This option is only required in
very rare cases where an application program requires access to the UART's
Scratchpad register. If this option is omitted, the QSP-200/300's interrupt status
register is enabled and the UARTs' Scratchpad registers are disabled.
Before removing a QSP-200/300 from its PCMCIA socket, the Enabler should be executed to
free the system resources allocated when the card was installed. For this operation the Enabler
provides on additional command line option:
R instructs the Enabler to release the resources previously allocated to the
QSP-200/300. When the 'R' option is used, any settings specified by the 'B', 'I', 'U',
and 'E' options are ignored. This option must be omitted when installing a
QSP-200/300 into the system.
QSP-200/300 User's Manual 25