2.11BSD/man/cat4/cons.0
CONS(4) UNIX Programmer's Manual CONS(4)
NAME
cons - PDP-11 console interface
DESCRIPTION
The console is available to the processor through the con-
sole registers. It acts like a normal terminal, except that
typing control-P on the consoles of some PDP-11's puts the
console in local console mode with an ODT (console debugger
mode) prompt. The operation of the console in this mode
varies per-processor. See the PDP-11 Processor Handbook for
your particular processor.
On an 11/44 the console can be put into local mode by typing
a control-P. The ODT prompt is ``>>>''. The processor is
not stopped by entering local console mode. The CPU may be
halted with the ``halt'' command, which may be abbreviated
to ``h.'' Conversational mode is re-entered by using the
command ``c'' (continue).
On 11/73 the processor's front panel halt switch must be
pressed to put the console into ODT mode. The ODT prompt is
an ``@''. No characters typed on the console are special
while UNIX is in control of the console.
FILES
/dev/console
SEE ALSO
tty(4), reboot(8)
PDP-11 Hardware Handbook specific to hardware
Printed 11/26/99 July 27, 1987 1