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GPI/O (General Purpose Input/Output) pins are provided for custom system design. This appendix provides
definitions and its default setting for the ten GPI/O pins in the EBC575 series. The pin definition is shown in
the following table:
P
n i
G
I P
O /
N
. o
1
G
I P
3
G
I P
5
G
I P
7
G
I P
9
V
C
Read the GPI Pin (1/3/5/7) status form I/O port 801H bit (0/1/2/3).
The bit is Set/Clear indicated High/Low
Control the GPO pin (2/3/6/8) level from I/O port 801H bit (4/5/6/7).
The bit is Set/Clear indicated output High/Low
Note:
All of these GPIO pins are 8mA digital open-drain buffer and internal pull-up.
EBC575 User's Manual
Appendix C Programming the GPI/O
P
o
w
r e
O
n
m
o
d
e
D
e
a f
u
t l
R
e
a
d
H
g i
h
R
e
a
d
H
g i
h
R
e
a
d
H
g i
h
R
e
a
d
H
g i
h
C
-
Table C-1: J10 – GPI/O Connector
P
n i
A
d
d
e r
s
s
G
I P
N
. o
8
0
1
H
(
) 0
2
8
0
1
H
(
) 1
4
8
0
1
H
(
) 2
6
8
0
1
H
(
) 3
8
-
1
0
79
P
o
w
r e
O
n
O /
m
o
d
e
D
e
a f
u
t l
G
P
O
H
g i
h
G
P
O
H
g i
h
G
P
O
H
g i
h
G
P
O
H
g i
h
G
N
D
-
A
d
d
e r
s
s
8
0
1
H
(
) 4
8
0
1
H
(
) 5
8
0
1
H
(
) 6
8
0
1
H
(
) 7
-
Appendix C
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