Copyright © 2014 NEXCOM International Co., Ltd. All Rights Reserved.
48
EBC 355 User Manual
Appendix B: GPI/O Programming Guide
Appendix B: GPI/O Programming Guide
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. The pin definition is shown in the following table:
Pin
GPI/O mode PowerOn
Default
Address
Pin
GPI/O mode PowerOn
Default
Address
1
VCC
-
-
2
GND
-
-
3
GPO0
Low
A03h (Bit6)
4
GPI0
High
A03h (Bit1)
5
GPO1
Low
A02h (Bit5)
6
GPI1
High
A05h (Bit5)
7
GPO2
Low
A07h (Bit0)
8
GPI2
High
A05h (Bit4)
9
GPO3
Low
A07h (Bit1)
10
GPI3
High
A00h (Bit1)
Control the GPI/O pin 3 level from I/O port A03h bit 6.
Control the GPI/O pin 5 level from I/O port A02h bit 5.
Control the GPI/O pin 7 level from I/O port A07h bit 0.
Control the GPI/O pin 9 level from I/O port A07h bit 1.
The bit is Set/Clear indicated output High/Low.
