Appendix b: gpi/o programming guide – NEXCOM ICES 668 User Manual
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ICEK 668-T6 Starter Kit 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 in the
ICES 668 series. The pin definition is shown in the following table:
Pin No. GPI/O mode PowerOn
Default
Address
Pin No. GPI/O mode PowerOn
Default
Address
1
VCC
-
-
2
GND
-
-
3
GPI0
Low
548h (Bit6)
4
GPO0
High
548h (Bit7)
5
GPI1
Low
50Eh (Bit1)
6
GPO1
High
50Ch (Bit7)
7
GPI2
Low
548h (Bit4)
8
GPO2
High
538h (Bit6)
9
GPI3
Low
548h (Bit5)
10
GPO3
High
538h (Bit7)
Control the GPO pin (3/5/7/9) level from I/O port 548h, 50Eh, 548h, 548h bit (6/1/4/5).
The bit is Set/Clear indicated output High/Low