Chapter5 SignalConnections
7344/7334Hardware 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.

Figure5-8. 68-PinDigital I/O Connector Pin Assignments

Port4:bit 7
DigitalGround
Port4:bit 4
Port4:bit 3
DigitalGround
Port4:bit 0
Port3:bit 7
DigitalGround
Port3:bit 4
Port3:bit 3
DigitalGround
Port3:bit 0
Port2:bit 7
Port2:bit 6
DigitalGround
DigitalGround
DigitalGround
Port2:bit 1
Port2:bit 0
Port1:bit 7
DigitalGround
Port1:bit 4
Port1:bit 3
DigitalGround
Port1:bit 0
PWM2
Reserved
Reserved
Reserved
PWM1
Reserved
Reserved
PCLK
+5V
DigitalGround
Port4:bit 5
DigitalGround
Port4:bit 1
DigitalGround
Port3:bit 6
Port3:bit 5
Port4:bit 6
Port4:bit 2
DigitalGround
Port3:bit 2
Port3:bit 1
DigitalGround
DigitalGround
Port2:bit 5
Port2:bit 4
Port2:bit 3
Port2:bit 2
DigitalGround
DigitalGround
Port1:bit 6
Port1:bit 5
DigitalGround
Port1:bit 2
Port1:bit 1
DigitalGround
DigitalGround
DigitalGround
Reserved
DigitalGround
DPull
DigitalGround
DigitalGround
DigitalGround
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