Nuvo-2500 Series User’s Manual
Copyright © 2015 Neousys Technology Inc. All Right Reserved.
Page 43 of 154
2.3.5 Auxiliary I/O Port of Nuvo-2500
Figure 17: Auxiliary I/O on Nuvo-2500
The Auxiliary I/O port on Nuvo-2500 is always mounted. However this port works only on
some models of Nuvo-2500 which is shipped with specific micro-controller codes. The
behavior of the Auxiliary I/O Port on a standard Nuvo-2500 is undefined. Please keep this
port unconnected on a standard Nuvo-2500.
Table 22: Pin Definition of Auxiliary I/O on Nuvo-2500
Pin No.
Definition
I/O
Description
1
VDD
-
DO voltage source input for inductive load
2
DO_0
O
Digital output channel 0
3
DO_1
O
Digital output channel 1
4
DO_2
O
Digital output channel 2
5
DO_3
O
Digital output channel 3
6
DO_GND
-
Digital output GND
7
DI_0
I
Digital input channel 0
8
DI_1
I
Digital input channel 1
9
DI_GND
-
Digital input GND
10
EZ
I
Encoder Index input
11
GND
-
GND of Encoder/PWM/ADC/12V
12
EA
I
Encoder Phase A input
13
EB
I
Encoder Phase B input
14
12V
-
Non-isolated 12V power supply
15
GND
-
GND of Encoder/PWM/AI/12V
16
AI_1
I
Voltage input channel 1
17
AI_0
I
Voltage input channel 0
