225
Programmable Hardware Manual (PHM)
© Tibbo Technology Inc.
Optio
n 2
RX/TX/CTS/RTS +
RX/TX + RX/
tx
RX
TX
CT
S
RT
S
RX3
TX
3
RX
4
tx4
Optio
n 3
RX/TX/CTS/RTS +
RX/TX/CTS/
rts
RX
TX
CT
S
RT
S
RX3
TX
3
CT
S3
rts3
Optio
n 4
RX/TX/CTS/RTS +
RX/TX/DSR/
dtr
RX
TX
CT
S
RT
S
RX3
TX
3
DS
R3
dtr3
Optio
n 5
RX/TX/DSR/DTR +
RX/TX + RX/
tx
RX
TX
RX2
TX
2
DS
R
DT
R
RX
4
tx4
Optio
n 6
RX/TX/DSR/DTR +
RX/TX/CTS/
rts
RX
TX
RX2
TX
2
DS
R
DT
R
CT
S2
rts2
Optio
n 7
RX/TX/DSR/DTR +
RX/TX/DSR/
dtr
RX
TX
RX2
TX
2
DS
R
DT
R
DS
R2
dtr2
Optio
n 8
RX/TX + RX/TX +
RX/TX + RX/
tx
RX
TX
RX2
TX
2
RX3
TX
3
RX
4
tx4
Optio
n 9
RX/TX/CTS/
rts
+
RX/TX + RX/TX
RX
TX
RX2
TX
2
RX3
TX
3
CT
S
rts
Optio
n 10
RX/TX/DSR/
dtr
+
RX/TX + RX/TX
RX
TX
RX2
TX
2
RX3
TX
3
DS
R
dtr
Optio
n 11
RX/TX/CTS/RTS +
RX/
tx
/CTS/RTS
RX
TX
CT
S
RT
S
CT
S4
RT
S4
RX
4
tx4
Optio
n 12
RX/TX/CTS/RTS +
RX/
tx
/DSR/DTR
RX
TX
CT
S
RT
S
DS
R4
DT
R4
RX
4
tx4
Optio
n 13
RX/TX/DSR/DTR +
RX/
tx
/CTS/RTS
RX
TX
CT
S4
RT
S4
DS
R
DT
R
RX
4
tx4
Optio
n 14
RX/TX/DSR/DTR +
RX/
tx
/DSR/DTR
RX
TX
DS
R4
DT
R4
DS
R
DT
R
RX
4
tx4
Mappi
ng
optio
n
Available signals
R
X
TX
RX
2/
CT
S
TX
2/
RT
S
RX
3/
DS
R
TX
3/
DT
R
RX
4
TX4
Terminal blocks of the expansion connector
(as marked on the EM1206EV)
"Available signals" column shows a particular combination of I/O lines for each
option. For example, option 0 defines the standard serial port arrangement with RX,
TX, CTS, RTS, DSR, and DTR lines. Option 2 gives you one channel with RX, TX,
CTS, and RTS lines, one more channel with just RX and TX lines, and yet another
channel with a single RX line. The TX line is "missing" because, once again, there are
only three outputs available on the RS232 port. This is why this line is shown in grey
lowercase (
tx
). This line, of course, is present and available on the expansion
connector.