NEXCOM EBC 355 - Manual (Page 62)

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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.