PacComm TINY-2 - Page 95

PACKET
CONTROLLER
COMMANDS
Command
List
(RXblock
Command
Continued)
RXblock
is
designed
for
automated
operations,
such
as
packet
bulletin
board
stations.
It is intended
to help
such
systems
dis-
criminate
between
data
received
from
the
connected
station
and
packet
controller-generated
messages.
Correct
operation
of
RXblock
is
dependent
on
the
AWlen
parameter
getting
set
to
8
(bits)
since
the
character
FF
hex
marks
the
beginning
of
a
received
data
unit
header.
When
RXblock
is
on,
data
from
other
stations
will
be
sent
from
the
packet
controller
in
the
following
format:
The
fields
above
are
defined
as
follows:
Prefix
$FF
::=
A
character
with
all
8
bits
set
Length
LO
t=
The
high
order
data
length,
length
and
pid
fields
logically
ORed
with
$FO
Lt
ne
The!
ow
order
data
length,
length,
and
pid
Is
Pid
PID
::=
The
Protocol
IDentifier
byte
received
for
the
following
data
field
Data
DATA
::=
[Optional],
variable
length
data
For
best
operation,
parameters
like
AUtolf,
MFilter
etc.
should
be
set
OFF
to
prevent
uncertanties
in
the
size
of
the
data
field.
tees
This
is
an
immediate
command
which
displays
to
the
screen
whatever
service
information
the
dealer
has
inserted
in
the
EPROM.
Ifno
data
has
been
stored
in
the
EPROM,
SAle
returns
the
message:
not
implemented
This
command
is
u:
properly
format
terminal
output.
A
<CR>
<LF>
sequence
is
sent
to
the
terminal
in
Command
and
Converse
Modes
after
n
characters
have
been
sent.
A
value
of
zero
inhibits
this
action.
If
your
computer
automatically
for-
mats
output
lines,
you
should
leave
SCREENLN
=
0
to
avoid
conflict
A
command
used
by
a
PMS
over-the-air
user.
See
SEND
below.
88
Operating
Manual,
4th
Ed.
©
PacComm,
1990