National Instruments roboRIO, User Manual

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Table 11.
PWM Port Signal Descriptions
Signal Name Direction Description
S (PWM) <0..9> Output PWM digital lines with 5 V output.
6V Output +6 V power output for servos only.
GND — Reference for digital lines and +6 V power output.
SPI Port
The following figure and table describe the SPI port pins and signals.
Figure 13.
SPI Port Pinout
SCLK
MOSI
MISO
3.3V
CS0
CS1
CS2
CS3
5V
Table 12.
SPI Port Signal Descriptions
Signal Name Direction Description
3.3V Output +3.3 V power output.
5V Output +5 V power output.
CS <0..3> Output SPI with 3.3 V output, 3.3 V-/5 V-compatible input. Refer to the
SPI Lines section for more information.
SCLK Output
MOSI Output
MISO Input
GND — Reference for digital lines and +3.3 V and +5.5 V power output.
Signal Ground References
To minimize noise on analog measurement channels, use the ground reference of the
corresponding port. For example, when you are using AI, the measurement should reference
the GND of the AI port.
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