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Chapter 7: I/O Wiring
Figure 7-2. User and Dedicated I/O Headers - DSPpro-VME
The following table illustrates the pinouts for the headers P1 P2, and P3. These pinouts are
identical for the DSPpro-VME.
I/O Description
P1A
User Port 0 (8 bits input or output)
P1B
User Port 1 (8 bits input or output)
P1C
User Port 2 (8 bits input or output)
P2A
Dedicated Inputs for Axes 0 and 1
P2B
Dedicated Inputs for Axes 2 and 3
P2C
Dedicated Outputs for Axes 0-3
P3A
Dedicated Inputs for Axes 4 and 5 or User Port 3 (6 bits in or 6 bits out)*
P3B
Dedicated Inputs for Axes 6 and 7 or User Port 4 (6 bits in or 6 bits out)*
P3C
Dedicated Outputs for Axes 4-7 or User Port 5 (8 bits input or output)*
* The function of the signals on P3 depends on the number of axes. Boards with 5 or more axes use P3 for Dedicated I/O. On boards
with 4 axes or less, P3 is available for user I/0. If P3 is used for User I/O, User Ports 3, 4 or 5 can be configured for inputs or outputs
The User I/O connections use 50 pin box headers and are Opto-22/Grayhill/Gordos compatible.
Even numbered pins are grounds and pin 49 is +5 volts.
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