Manual NISE 3500 - ICPDAS-EUROPE

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 in the NISE3500 series. The pin definition is shown in the
following table:
Pin GPI/O PowerOn Address Pin GPI/O PowerOn Address
No. mode Default
No. mode Default
1 VCC - - 2 GND - -
3 GPO Low 3E4h (Bit4) 4 GPI High 3E4h (Bit0)
5 GPO Low 3E4h (Bit5) 6 GPI High 3E4h (Bit1)
7 GPO Low 3E4h (Bit6) 8 GPI High 3E4h (Bit2)
9 GPO Low 3E4h (Bit7) 10 GPI High 3E4h (Bit3)
JP2 – GPI/O Connector
Control the GPO pin (3/5/7/9) level from I/O port 3E4h bit (4/5/6/7).
The bit is Set/Clear indicated output High/Low
GPIO programming sample code
#define GPIO_PORT 0x3E4
#define GPO3 (0x01