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STANDARD/ ENHANCED Mode
STANDARD MODE: In this mode, the I/O addresses and IRQ levels
of each port are set to their default values, as shown below. (Disable
BIOS settings of on-board COM1 ~ COM4 ports)
P
P
P
P
P
o
o
o
o
o
t r
t r
t r
t r
t r
N
N
N
N
N
. o
. o
. o
. o
. o
I
I
I
I
I
O /
O /
O /
O /
O /
A
A
A
P
o
t r
1
P
o
t r
2
P
o
t r
3
P
o
t r
4
ENHANCED MODE: In this mode, the I/O addresses and IRQ levels
of each port are set as shown below. Make sure that the I/O addresses
of the original system (refer to Appendix A) will never conflict with
the PCL-846/847 card's [Base Address] ~ [Base Address + 1F].
P
P
P
P
o
o
o
o
t r
t r
t r
t r
N
N
N
N
. o
. o
. o
. o
P
o
t r
N
. o
P
o
t r
1
P
o
t r
2
P
o
t r
3
P
o
t r
4
C
C
C
C
O
O
O
O
M
M
M
M
P
P
P
P
C
O
M
P
A
A
d
d
d
d
d
d
d
d
d
d
e r
e r
e r
e r
e r
s
s
s
s
s
s
s
s
s
s
N
. o
3
F
8
h
C
O
M
2
F
8
h
C
O
M
3
E
8
h
C
O
M
2
E
8
h
C
O
M
I
I
I
I
O /
O /
O /
O /
A
A
A
A
d
d
d
d
d
d
d
d
e r
e r
e r
e r
s
s
s
s
s
s
s
s
I
O /
A
d
d
e r
s
s
B
a
s
e
A
d
d
e r
s s
+
0
0
h
B
a
s
e
A
d
d
e r
s s
+
0
8
h
B
a
s
e
A
d
d
e r
s s
+
1
0
h
B
a
s
e
A
d
d
e r
s s
+
1
8
h
R I
R I
R I
R I
R I
o
o
o
o
t r
t r
t r
t r
o
t r
n I
d
e
p
e
n
d
e
t n
1
J
P
1
1
2
J
P
1
2
3
J
P
1
3
4
J
P
1
4
R I
R I
R I
R I
R I
Q
Q
Q
Q
Q
L
L
L
L
L
e
e
e
e
e
v
v
v
v
v
n I
d
e
p
e
n
d
e
t n
R I
Q
J
P
1
1
J
P
1
2
J
P
1
3
J
P
1
4
Appendix B Quick Reference
Q
Q
Q
Q
Q
L
L
L
L
L
e
e
e
e
e
v
v
v
v
v
l e
l e
l e
l e
l e
) * (
) * (
) * (
) * (
) * (
R I
Q
S
h
a
e r
R I
J
P
1
1
J
P
1
1
J
P
1
1
J
P
1
1
l e
l e
l e
l e
l e
) * (
) * (
) * (
) * (
) * (
S
h
a
e r
R I
Q
J
P
1
1
J
P
1
1
J
P
1
1
J
P
1
1
Q
37
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