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Chapter 3 Signal Connections 17
I/O Connector Signal Descriptions (part II)
Signal Name Reference Direction Description
DI<0..15> DGND Input
Digital Input signals
DO<0..15> DGND Output
Digital Output signals
DGND - -
Digital Ground. This pin supplies the
reference for the digital signals at the I/O
connector as well as the +5V
DC
supply. The
three ground references (AIGND, AOGND,
and DGND) are connected together on the
PCI-1710/1710HG card.
CNT0_ CLK DGND Input
Counter 0 Clock Input. This pin is the
external clock input of counter 0. The clock
input of counter 0 can be either external (up
to 10 MHz) or internal (100 kHz), as set by
software.
CNT0 _OUT DGND Output
Counter 0 Output. This pin is the output of
counter 0. See Appendix A for more detailed
information.
CNT0 _GATE DGND Input
Counter 0 Gate Input. This pin is the gate
control for counter 0. See Appendix A for
more detailed information.