N9H26
Mar 15, 2019
Page
12
of 29
Rev 1.01
NUDE
S
IG
N H
MI
-N9H
26
U
S
E
R
M
A
NUA
L
positive connect and pin 2 for negative connect.
2.1.10 Power Connector
CON3: 5 VCC connector in NuDesign HMI-N9H26
2.1.11 RS-232 Connector
CON8: Supply TIA/EIA-232-F voltage levels TXD & RXD signals in NuDesign HMI-N9H26
2.1.12 KEY Matrix
S1~S6: Key combination with Columns(GPB3 & 2) & Rows(GPB6, 5 & 4)
Row
Column
GPB6
GPB5
GPB4
GPB3
S1
S2
S3
GPB2
S4
S5
S6
2.1.13 TEST Points
TP1~TP9: Test Points in NuDesign HMI-N9H26
Function
Descriptions
TP1
DVDD18
Memory 1.8 Voltage
TP2
VDD5V
5 Voltage Input
TP3
PWR_EN
Power Enable
TP4
RTCVDD33
RTC 3.3 Voltage
TP5
DVDD12
Core 1.2 Voltage
TP6
DVDD33
I/O 3.3 Voltage
TP7
GPG7
ADC VSENSE
TP8
GPG3
ADC AIN2
TP9
AGND
ADC Analog Ground