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Sharp ZQ-6100M - Page 168

Sharp ZQ-6100M
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SPEED
bps
(Communication
or
transmission
speed)
Communication
speed
refers
to
the
rate
at
which
information
is
transmitted
over
a
communication
channel
and
is
expressed
by
the
number
of
bits
per
second
(bps).
Your
Organizer
supports
communication
speeds
of
300,
1200,
2400,
4800
and
9600
bps.
Select
the
fastest
one
of
these
supported
by
both
your
modem
and
that
of
the
remote
system.
DATA
BITS
(Character
length
of
bits
per
character)
Character
length
refers
to
the
number
of
bits
required
to
represent
one
character
of
data.
You
can
select
either
7
or
8
bits.
Select
7
bits
for
data
communications
using
ASCI!-compatible
characters
(alphanumeric
and
symbols)
and
8
bits
for
data
communications
using
European
characters
and/or
special
symbols
(codes
80H
to
FFH)
in
addition
to
the
ASCII
characters.
In
general,
the
option
7
DATA
BITS
is
used
in
the
US
and
8
DATA
BITS
in
Europe.
PARITY
(Parity
check)
Parity
check
is
also
referred
to
as
an
“odd-even
check”
and
provides
a
means
of
checking
a
set
of
data
bits
for
their
validity
by
attaching
a
non-data
parity
bit
to
the
data.
The
parity
bit
is
set
to
1
or
0
so
that
the
total
number
of
1’s
in
each
transmitted
character
is
always
even
or
always
odd.
You
may
select
NONE
(no
parity
check),
ODD
(odd-
parity
check)
or
EVEN
(even-parity
check).
Generally,
select
EVEN
for
7-bit
data
communications
and
NONE
for
8-bit
data
communications.
STOP
BITS
(The
number
of
stop
bits)
In
asynchronous
serial
transmission
(such
as
when
using
an
RS-232C
interface),
data
bits
are
sent
one
by
one.
A
start
bit
and
one
or
two
stop
bits
are
attached
to
each
character
so
the
receiving
device
will
know
its
beginning
and
end.
In
data
communications
with
a
PC,
one
stop
bit
is
used.
XON/XOFF
(XON/XOFF
flow-control
protocol)
XON/XOFF
flow-coniro!
protocol!
is
also
called
X-contro!
or
Buffer
control.
Most
computer
terminals
have
a
buffer
to
receive
data,
from
which
the
terminal
reads
data
bits
one
by
one.
If
the
data
read
rate
is
slower
than
the
rate
data
is
sent,
the
receive
buffer
will
soon
become
full,
resulting
in
the
loss
of
some
transmitted
data
bits.
With
this
control
protocol,
the
terminal
can
automatically
send
a
signal
to
the
sending
computer
to
temporarily
stop
data
transmission.
172

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