Dimming, Cursor mode, Screen mode – IBM 32x User Manual
Page 43: A-11, Cursor, Mode, Screen
Purpose:
The
displayed
characters
from
the
write-in
position
to
the
end
position
on
the
same
row
are
erased.
The
write-in
position
is
not
shifted.
Dimming
1B
5C
3F
4C
44
Ps
Purpose:
Luminance
can
be
adjusted
into
six
levels
by
using
this
command.
The
data
byte
following
the
command
sequence
(represented
by
Ps
in
the
preceding
command
format),
changes
the
dimming
level.
When
the
module
is
turned
on,
the
level
is
set
to
5
(100%).
Ps
Luminance
%
0
(X'30')
0
1
(X'31')
31.6
2
(X'32')
45
3
(X'33')
58.8
4
(X'34')
79.4
5
(X'35')
100
(default)
Cursor
mode
1B
5C
3F
4C
43
Ps
Purpose:
This
command
is
only
available
in
5x7-dot
screen
mode.
The
data
byte
following
the
command
sequence
(represented
by
Ps
in
the
preceding
command
format),
changes
the
cursor
mode.
The
cursor
is
always
displayed
at
the
write-in
position.
The
cursor
is
formed
by
five
dots
that
are
located
at
the
bottom
of
5x7-dot
matrix
character
font.
Ps
Mode
0
(X'30')
No
lighting
(default)
1
(X'31')
Blinking
2
(X'32')
Lighting
No
Lighting
The
cursor
does
not
display.
This
is
the
default
setting
when
power
is
turned
on.
Blinking
The
cursor
flashes
ON
and
OFF
every
0.3
seconds
at
the
blank
digit.
Lighting
The
cursor
displays.
If
the
write-in
position
is
assigned
to
the
position
at
which
a
character
is
displaying,
the
cursor
displays
instead
of
the
character.
Screen
mode
1B
5C
3F
4C
53
Ps
Purpose:
The
data
byte
following
the
command
sequence
(represented
by
Ps
in
the
preceding
command
format),
changes
the
screen
mode.
Input/output
device
commands
11-9-2005
Appendix
A.
Input/output
device
commands
A-11