B: gpi/o p, Ppendix, Rogramming – NEXCOM NDiS 163 User Manual
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Appendix B: GPI/O Programming Guide
NDiS 163 User Manual
a
PPendix
B: gPi/o P
rogramming
g
uide
This appendix provides definitions for the GPI/O pins in NDiS 163. GPI/O
(General Purpose Input/Output) pins are provided for custom system
design. The pin programmed as input mode (GPI) or output mode (GPO)
depends on the configuration.
Command Format Define
Command
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
GPIO mapping GP
I 3
GP
I 2
GP
I 1
GP
I 0
GPO 3 GPO 2 GPO 1 GPO 0
Connector Pin Define
1
2
3
4
5
6
7
8
9
10
GPO 0 GPO 1 GPO 2 GPO 3 GP
I 0
GP
I 1
GP
I 2
GP
I 3
5V
GND
O 0
O 1
O 2
O 3
I 0
I 1
I 2
I 3
OUTPUT
INPUT
Test Method
The steps below will guide you in verifying the GPIO port.
Step 1
Short pins 3-7, 4-8, 5-9 and 6-10 of the CN2 connector.
Step 2
Boot the system in DOS operating environment.
Run the debug utility in C:\ then enter
-o 801 F3
-i 801
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