Timewave DSP-232, Operating Manual, Page: 54 / 271

Chapter 4 Terminal Interfacing
1 = odd parity
2
= no parity
3 = even parity
The parity bit, if present, is stripped automatically on input and isn’t checked in Command and Converse modes, but
in Transparent mode all eight bits (including parity) are transmitted.
The change won’t take effect until you enter
RESTART
. Be sure to change the computer or terminal to the same
parity setting after you’ve entered RESTART .
PASs
n Default: $16 (
CTRL-V
)
Host: PS
“n” 0 to $7F (0 to 127 decimal) specifies an ASCII character code that you can .
PASS selects the ASCII character “n” used for the “pass” input editing commands. The PASS character signals
that the following character is to be included in a packet PACTOR or ASCII text string. For example, if you’re
typing in text and want to enter three
RETURN
s so you can put a line space between two paragraphs, you’d do this:
“...here’s the end of the first paragraph.” ( CTRL-V ) + ( RETURN ) + ( CTRL-V ) ( RETURN ) + ( CTRL-
V
)
+
(
RETURN
) .“Now this line will appear after a line space.”
The line will appear at the other station like this:
“...here’s the end of the first paragraph.”
“Now this line will appear after a line space.”
If you had just pressed
( RETURN ) at the end of the word, “paragraph,” you would’ve forced a packet to be sent.
Press (
RETURN
) again, and you would’ve forced an empty packet to be sent. Press (
RETURN
) yet again, and
another empty packet would’ve been sent. This happens because when you press RETURN , it normally forces a
packet to be sent. However, by inserting a (
CTRL-V
) before entering a (
RETURN
), you disable the function of
( RETURN ) in the Command mode and allow it to be used in your outgoing text to act as a “real” ( RETURN ). So,
the
PASS
character “hides” the next character’s function.
PK n Default: none
Host: PK
n
a hex number used to access the DSP-232’s memory and I/O locations.
PK (Peek/Poke) permits access to memory locations. To use the PK command:
1)
Set the memory address into the ADDRESS command.
2) Use the PK command without arguments to read that memory location.
3) Use PK with one argument 0-$FF to write to that memory location.
DSP-232 RAM locations are $8000-$FFFF. ROM begins at $0000. This command is used primarily as a
programmer’s aid and is not needed for normal use.
QData n
Default: 21
Host: QA
n
Modem number to be selected when the DSP DATA mode is entered.
QDATA sets the DSP-232 modem that will automatically be selected when the DSP DATA mode is entered.
See the DSPDATA and MODEM commands for more information.
September, 05 4-21