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iDP-3420/3421/3423 User’s Manual
51 CITIZEN
10
1010
10.
..
.3
33
3.
..
.3
33
3E
EE
Er
rr
rr
rr
ro
oo
or
r r
r D
DD
De
ee
et
tt
te
ee
ec
cc
ct
tt
ti
ii
io
oo
on
nn
n
A parity error, framing error, and overrun error are detected. When an error is detected,
that data is stored in the buffer as "?".
(1) Framing error
This error results when a space is detected in detecting the stop bit. That data is stored
in the buffer as "?".
(2) Parity error
If a parity check has been specified and an error is detected at the time of parity check,
that data is stored in the buffer as "?".
(3) Overrun error
If an overrun error is detected, that data is stored in the buffer as "?".
10
1010
10.
..
.3
33
3.
..
.4
44
4D
DD
Da
aa
at
tt
ta
a a
a R
RR
Re
ee
ec
cc
ce
ee
ei
ii
iv
vv
vi
ii
in
nn
ng
g g
g C
CC
Co
oo
on
nn
nt
tt
tr
rr
ro
oo
ol
ll
l
When the DTR signal is a space, the data from the host side can be received. When it is a
mark, however, the data cannot be received.
10
1010
10.
..
.3
33
3.
..
.5
55
5B
BB
Bu
uu
uf
ff
ff
ff
fe
ee
er
rr
ri
ii
in
nn
ng
gg
g
The DTR and TXD signals are available as control signals to transfer the data to the input
buffer.