
Interfaces and Connectors
EBX-22 Reference Manual
33
J23
I/O
C
ONNECTOR
The 40-pin I/O connector (J23) incorporates the USB4 interface, 16 digital I/O channels, and the
audio interface. Table 7 illustrates the function of each pin.
Table 7: J23 I/O Connector Pinout
J23
Pin
Signal
CB-4004
Connector
CBR-4004
Signal
1 GND
J1
5 (IO1)
2 USB4_PWR
USB4
4 (IO2)
3
3 (IO3)
4 USBDT4-
2 (IO4)
5 GND
1 (GND1)
6 PLD_GPIO
0
J2
5 (IO5)
7 PLD_GPIO
1
PLD_GPIO
4 (IO6)
8 PLD_GPIO
2
3 (IO7)
9 GND
2 (IO8)
10 GND
1 (GND1)
11
Digital I/O 16
J3
5 (IO9)
12
Digital I/O 17
Digital IO
4 (IO10)
13
Digital I/O 18
3 (IO11)
14
Digital I/O 19
2 (IO12)
15 GND
1 (GND2)
16
Digital I/O 20
J4
5 (IO13)
17
Digital I/O 21
Digital IO
4 (IO14)
18
Digital I/O 22
3 (IO15)
19
Digital I/O 23
2 (IO16)
20 GND
1 (GND2)
21
Digital I/O 24
J6
1 (IO17)
22
Digital I/O 25
Digital IO
2 (IO18)
23
Digital I/O 26
3 (IO19)
24
Digital I/O 27
4 (IO20)
25 GND
5 (GND3/PBRST#)
26
Digital I/O 28
J7
1 (IO21)
27
Digital I/O 29
Digital IO
2 (IO22)
28
Digital I/O 30
3 (IO23)
29
Digital I/O 31
4 (IO24)
30 GND
5 (GND3)
31 NC
J8
1 (IO25)
32 AUDOUTR
Audio Out
2 (IO26)
33 GND
3 (IO27)
34 AUDOUTL
4 (I028)
35 GND
5 (GND4)
36 NC
J9
1 (IO29)
37 AUDINR
Audio In
2 (IO30)
38 NC
3 (IO31)
39 AUDINL
4 (IO32)
40 GND
5 (GND4)
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