Appendix B: Gpi/O Programming Guide - Nexcom 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
1 VCC -
3 GPO0 Low
5 GPO1 Low
7 GPO2 Low
9 GPO3 Low
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.
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Address Pin GPI/O mode PowerOn
- 2 GND
A03h (Bit6) 4 GPI0
A02h (Bit5) 6 GPI1
A07h (Bit0) 8 GPI2
A07h (Bit1) 10 GPI3
Address
Default
- -
High A03h (Bit1)
High A05h (Bit5)
High A05h (Bit4)
High A00h (Bit1)
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EBC 355 User Manual