TeleVideo 950 Operator's Manual page 17

7. Move the cursor to the next block and toggle
through the operating mode controls (LOC, BLOCK,
HDX, and FDX) to the desired selection.
8. If the terminal is to operate temporarily at a baud
rate different from the default value set on the setup
switches (refer to paragraph 2.4), move the cursor to
the next setup block and press
T
to toggle through the
baud rates to the desired value.
9. Press SHIFT and SET-UP at the same time to
leave the Setup Mode and return to normal operation.
3.5 USER LINE PROGRAMMING.
The Model 950 provides a line that may be programmed
with user data. When displayed, it replaces the Status
Line on line 25 (see Figure 3-4). The line may be loaded
with up to 80 characters. Both the Status and User Lines
may be transmitted to the host.
To load the User Line and send the Status Line or the
User Line to the host, proceed as follows:
1. Press ESC, then press g to display the User Line.
2. Press ESC, then pressf.
3. Enter up to 80 characters of text. The message will
appear on the User Line as it is entered.
4. Press RETURN to terminate the user message.
5. To send the User Line message to the host, press
ESC, then press Z and 0 in sequence.
6. To redisplay the Status Line on line 25, press ESC,
then h.
7. To send the Status Line to the host, press ESC,
then press Z and I sequentially.
3.6 FUNCTION KEY PROGRAMMING
The memory assigned to the function keys can hold up to
256 bytes (or characters) total. For each message en-
tered, an extra character byte is added by the Model 950
processor for control purposes. The number of charac-
ters that may be entered per key equals 256 bytes minus
the number of keys programmed minus the total bytes
for all keys already programmed. For example, if three
keys have already been programmed with four charac-
ters each, then the next key may be programmed with up
to 240 characters; that is
256 bytes
- 3 bytes (extra characters) for keys already
programmed
- 1 bytes (extra character) new key
- 12 bytes total already programmed
=
240 bytes left that may be programmed.
When the terminal is first turned on, the function keys
are programmed with default messages set to Full Du-
plex mode. These default message codes are as follows:
KEY CODE SHIFTED CODE
Fl CTRLA
@
CR CTRL A" CR
F2 CTRL A A CR CTRL A a CR
F3 CTRL A B CR CTRL A b CR
F4 CTRL A C CR CTRL A c CR
F5 CTRL A D CR CTRL A d CR
F6 CTRL A E CR CTRL A e CR
F7 CTRL A F CR CTRL A f CR
F8 CTRL A G CR CTRL A g CR
F9 'CTRL A H CR CTRL A h CR
FlO "CTRb A I CR CTRL A i CR
Fl1 CTRL A
J
CR CTRL A j CR
To program the function keys, use the following dia-
logue:
ESC: PI P2 message CTRL Y
where
PI
is the number of the function key. The values of
PI are as follows:
KEY
Fl
F2
F3
F4
F5
F6
F7
F8
F9
FlO
Fll
NORMAL
1
SHIFTED
<
2
3
4
5
6
7
8
9
=
>
?
@
A
B
C
D
E
F
and where P2 is a 1 (send to a host-FDX), 2 (send to
screen-LaC), or 3 (send to host and to screen-
HDX).
NOTE
For revision 1.0 firmware, function keys
must be programmed in sequential ascend-
ing order.
Because control, escape, cursor position, and similar
function keys are not normally stored, a CTRL P imbed-
ded in the text of the function key message may be used
to store the next character entered. For example, if the
desired message is (spaces are for clarity only, do not in-
clude them when entering command sequences):
ESCA CTRL Y B C CTRLP
precede it with ESC: the key number, and the transmis-
sion mode (see above), then enter it as
w~!~ ~
P CTr Y B C CTr'RL P CTRJL P
stores _ _ _ _ _
--1_
and where - - - - - - - - - - - - '
stores _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
....1
and then complete the load sequence with the CTRL Y
load terminator.
Once the function keys have been programmed, just
press the desired key (for the first message programmed)
or the desired key and SHIFT at the same time (for the
second message programmed).
3.7 CURSOR ATTRIBUTES
The cursor display may appear anyone of five ways. To
set the cursor display, enter the control code for the de-
sired attribute. Type the code in the exact sequence
shown below (do not enter the spaces between the char-
acters; spaces are for clarity only):
ATTRIBUTE
Not displayed
Blinking block
Steady block
Blinking underline
Steady underline
CODE
ESC.O
ESC .1
ESC.2
ESC.3
ESC.4
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