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Pin
Name
DI/O Port 0 <0..7>
DI/O Port 1 <0..7>
DI/O Port 2 <0..7>
DI/O Port 3 <0..7>
DI/O Port 4 <0..7>
DI/O Port 5 <0..7>
DI/O Port 6 <0..7>
DI/O Port 7 <0..7>
DI/O Port 8 <0..7>
DI/O Port 9 <0..7>
DI/O Port 10 <0..7> I/O
DI/O Port 11 <0..7> I/O
GND
+5V
3.3.1
Digital Input (TTL DI, Pull-Up/-Down)
A digital input/output (DI/O) channel can be configured by software to perform digital
input measurement, which is the power-on default configuration, or digital output
generation. When performing digital input measurement, the voltage logic level
between the digital input (DI) terminal and the digital ground (DGND) terminal is mea-
sured. To prevent undetermined or fluctuating results when input is floating, the digi-
tal input channel can be configured as internally pulled-up or pulled-down by
software. This is shown in Figure 3.3.
PCIE-1753 User Manual
Direction Description
I/O
Bi-directional digital input/output port 0 terminals. 1 ~ 8
I/O
Bi-directional digital input/output port 1 terminals. 9 ~ 16
I/O
Bi-directional digital input/output port 2 terminals. 17 ~ 24
I/O
Bi-directional digital input/output port 3 terminals. 26 ~ 33
I/O
Bi-directional digital input/output port 4 terminals. 34 ~ 41
I/O
Bi-directional digital input/output port 5 terminals. 42 ~ 49
I/O
Bi-directional digital input/output port 6 terminals. 51 ~ 58
I/O
Bi-directional digital input/output port 7 terminals. 59 ~ 66
I/O
Bi-directional digital input/output port 8 terminals. 67 ~ 74
I/O
Bi-directional digital input/output port 9 terminals. 76 ~ 83
Bi-directional digital input/output port 10 terminals. 84 ~ 91
Bi-directional digital input/output port 11 terminals. 92 ~ 99
-
Ground terminals for digital signals.
O
+5 V supply output.
Figure 3.3 Digital input signal connection
18
Pin
Number
25, 75
50, 100
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