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em
Control Key
em
serves a control key, and can be used to generate
control codes according to the following table.
Press
em;
a RAD will appear to indicate that a control key
has been pressed.
0 OOH
I
09H
R 12H
A 01H
J
OAH
S 13H
B 02H
K OBH
T 14H
C 03H
L OCH
U 15H
D 04H
M ODH
V 16H
E 05H
N OEH
W 17H
F 06H
0
10H
X 18H
G
om
P 11 H
Y 19H
H 08H
Q
12H
Z
1AH
Graphic Codes Handling
A graphic code is an 8 bit byte with bit 7 (the high bit)
set. Of course, they can only be received when SETCOM
has specified 8 bit words.
When the PC-2 terminal
receives a graphic code, it is displayed as a graphic
character by modulating the byte to ASCII (0-127) and
setting LCD pixels in a bit image of the remain ing byte,
with bit 0 setting to the top pixel in a column and bit 7
setting the bottom. See GPR INT for more details.
Window Keys and Window Mode
Six key combinations serve as "window keys".
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The six Window Functions are:
(~)
Moves the display right one word
8 )
Moves the display left one word
CD
Displays the start of the previous line
OJ
Displays the start of the next line
(SHIFT)
CD
Displays the start of the buffer
(SHIFT)
OJ
Displays the end of the buffer
Press any of them to:
• Send an XOFF to the remote terminal if that protocol
is enabled.
•
Activate the Window Mode in which the contents of
the text buffer are displayed.
Words are considered to be terminated by spaces or
carriage returns.
Lines are considered terminated by
carriage returns. Carriage returns are displayed as blanks.
(CL)Key
Provided the Terminal Mode was entered via DTE (hence
ETX/long space protocol is enabled), the C Lear key sends
an ETX character (03H) and
(SHIFT)
(qo)
sends a long
space of about 1/4 second.
(BREAK)
(ON) Key
Press
(BREAK)
to interrupt whatever the terminal
program is doing and go to the Terminal Mode menus.
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