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The
format
of
the
Horizontal
Scroll
Release
command
is
as
follows:
1B
5C
3F
4C
4D
45
Purpose:
This
command
resets
horizontal
scroll
mode.
The
format
of
the
Horizontal
Scroll
Display
Mode
Set
command
is
as
follows:
1B
5C
3F
4C
4D
Pm
3B
Pl
3B
Pt
3B
Pn
3B
Pd...Pd
Purpose:
This
command
sets
horizontal
scrolling
options.
The
control
bytes
embedded
in
the
command
sequence
(represented
by
Pm,
Pl,
Pt,
and
Pn
in
the
preceding
command
format),
change
the
scrolling
characteristics.
Pd...Pd
represent
the
data
bytes.
This
command
does
not
affect
previous
display
settings.
Pm
(screen
mode)
6
(X'36'):
5x7
dots,
4
rows
7
(X'37'):
5x7
dots,
5
rows
8
(X'38'):
16x16
dots,
8x16
dots,
2
rows
Pl
(row)
1
∼
4
(X'31'
∼
X'34'):
Pm=6
1
∼
5
(X'31'
∼
X'35'):
Pm=7
1
∼
2
(X'31'
∼
X'32'):
Pm=8
Pt
(scroll
speed)
1
(X'31'):
1
digit/10
ms
1
(X'32'):
1
digit/20
ms
Pn
(number
of
characters)
The
number
of
data
bytes
(1
for
half
size
letter,
2
for
full
size
letter,
maximum
is
128
(X'80').
Pd...Pd
This
represents
the
data
characters.
The
format
of
the
Horizontal
Scroll
Start
command
is
as
follows:
1B
5C
3F
4C
4D
47
Purpose:
This
command
begins
horizontal
scrolling
on
all
lines.
All
subsequent
commands
are
ignored
until
a
Scroll
Mode
Release
command
is
sent.
The
rules
of
operation
for
the
Horizontal
Scroll
On
All
Lines
are
as
follows:
v
Any
codes
not
described
here
are
ignored.
v
The
most
recent
Display
Mode
Set
command
becomes
effective
in
one
screen
scroll
setting
before
the
Scroll
Start
command
is
performed.
v
A
screen
scrolls
from
right
to
left,
dot
by
dot.
v
The
range
of
the
display
that
is
being
scrolled
is
defined
by
the
screen
mode
setting.
v
The
command
is
canceled
when
Pn
=
X'00'.
After
it
is
canceled,
displayed
characters
are
cleared,
and
the
write-in
position
moves
to
the
most
significant
digit
of
the
row.
v
The
command
can
be
started
only
on
a
single
line.
v
A
character’s
Display
Mode
Set
command
(reverse,
blinking,
and
so
on)
can
be
added
with
the
display
data
frame.
If
the
command
is
written
twice
or
more
in
one
scroll
data
frame,
only
the
first
command
is
valid;
others
are
ignored.
Input/output
device
commands
11-9-2005
Appendix
A.
Input/output
device
commands
A-15
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