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Chapter 5 Signal Connections
7344/7334 Hardware User Manual 5-14 ni.com
Digital I/O Connector
All the general-purpose digital I/O lines on the 7344/7334 controllers are
available on a separate 68-pin digital I/O connector. The pin assignments
for this connector are shown in Figure 5-8.
Figure 5-8. 68-Pin Digital I/O Connector Pin Assignments
Port 4:bit 7
Digital Ground
Port 4:bit 4
Port 4:bit 3
Digital Ground
Port 4:bit 0
Port 3:bit 7
Digital Ground
Port 3:bit 4
Port 3:bit 3
Digital Ground
Port 3:bit 0
Port 2:bit 7
Port 2:bit 6
Digital Ground
Digital Ground
Digital Ground
Port 2:bit 1
Port 2:bit 0
Port 1:bit 7
Digital Ground
Port 1:bit 4
Port 1:bit 3
Digital Ground
Port 1:bit 0
PWM2
Reserved
Reserved
Reserved
PWM1
Reserved
Reserved
PCLK
+5 V
Digital Ground
Port 4:bit 5
Digital Ground
Port 4:bit 1
Digital Ground
Port 3:bit 6
Port 3:bit 5
Port 4:bit 6
Port 4:bit 2
Digital Ground
Port 3:bit 2
Port 3:bit 1
Digital Ground
Digital Ground
Port 2:bit 5
Port 2:bit 4
Port 2:bit 3
Port 2:bit 2
Digital Ground
Digital Ground
Port 1:bit 6
Port 1:bit 5
Digital Ground
Port 1:bit 2
Port 1:bit 1
Digital Ground
Digital Ground
Digital Ground
Reserved
Digital Ground
DPull
Digital Ground
Digital Ground
Digital Ground
135
236
337
438
539
640
741
842
943
10 44
11 45
12 46
13 47
14 48
15 49
16 50
17 51
18 52
19 53
20 54
21 55
22 56
23 57
24 58
25 59
26 60
27 61
28 62
29 63
30 64
31 65
32 66
33 67
34 68