User`s guide

SET XL
(XL)
Sets the communication-port handler for PDP–11 processors.
Format
SET XL condition
Condition
LINE=n
(Valid with multiterminal support only) Modifies the XL handler to use n as the
multiterminal serial port. The value of n can be between 0 and 16; the default
value is line 1.
The SET command takes no effect until the handler is LOADed or .FETCHed (See
the LOAD command description in this manual and the .FETCH programmed
request description in the RT–11 System Macro Library Manual).
CSR=n
Uses n as the CSR address for the XL handler. The valid range for n is 160000
to 177570
8
. This option enables you to set a special CSR value in the device
handler itself without having to modify and reassemble the handler source code.
[NO]MTTY
(Valid with multiterminal support only) MTTY selects use of multiterminal as
the interface to the XL handler. NOMTTY selects use of a DL interface for which
it was built as the interface to the XL handler.
VECTOR=n
Uses n as the vector address for the XL handler.
278 RT–11 Command Descriptions