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Multi-purpose I/O
EBX-38 Hardware Reference Manual
31
Digital I/O (DIO)
The 20-pin I/O connectors (J21 and J26) incorporate 16 (per connector) Digital I/O (DIO) lines
that are independently configurable as input or output. DIO inputs can be set for normal or
inverted level. DIO outputs can be set to be normal HIGH or LOW state. Any I/O pin can also be
configured to generate an interrupt on a change of state. There are pull-up resistors to +3.3 V on
all DIO lines. The pull-ups implemented on-board are 10k
Ω
values. After reset, the DIO lines are
set as inputs with pull-ups that will be detected as a HIGH state to external equipment.
VersaLogic provides a set of application programming interface (API) calls for managing the
DIO lines. See the
The figure below shows the location of the digital I/O connectors. Table 14 lists the pin functions
of the digital I/O connectors and how the pins are routed via the VL-CBR-2005A to the VL-
CBR-2004B paddleboard. Refer to page 56 for information on the VL-CBR-2004B paddleboard.
Figure 16. Location and Pin Orientation of Digital I/O Connector
Содержание Viper VL-EBX-38EBP
Страница 12: ...Introduction EBX 38 Hardware Reference Manual 2 Figure 2 VL EBX 38 Viper Single Board Computer Top Side...
Страница 14: ...Introduction EBX 38 Hardware Reference Manual 4 EBX 38 Block Diagram...
Страница 69: ...CBR 2004B Paddleboard EBX 38 Hardware Reference Manual 59 Figure 28 CBR 2004 Analog I O Connectors...