NuMaker-HMI-MA35D1-S1
Nov. 2, 2022
Page
45
of 99
Rev 1.01
N
UMA
K
E
R
-HMI
-M
A
3
5D1
-S1
U
S
E
R M
A
NU
A
L
Ma
k
er Nu
-m
be
d
NUC
47
2
Us
er Man
ua
l
14
TRACE_DATA0
PM12
R298*
LCM_RST / R135
15
VSS
-
-
-
16
TRACE_DATA1
PM13
R300*
BUZZER / R280
17
VSS
-
-
-
18
TRACE_DATA2
PM14
R301*
CCAP0_I2C3_SDA
/ R97
19
VSS
-
-
-
20
TRACE_DATA3
PM15
R302*
CCAP0_I2C3_SCL
/ R99
Note
*: No connection (NC) by default.
Table 3-38 ETM Interface (CON20) Pin Function
3.2.18
USB Virtual COM (VCOM) Port
USB VCOM Port (CON21, USB Micro-AB Receptacle): The microcontroller NUC123ZD4AN0
(U29) acts as an USB VCOM device to communicate data between the UART0 port of MA35D1
series and USB host of PC. An USB cable should be connected with this micro-B connector
(CON21) and should be plugged-in the PC host to display the debug messages on PC. (Optional)
VCOM Controller (U29): The microcontroller NUC123ZD4AN0 (U29) acts as an USB VCOM
device to communicate data between the UART0 port of MA35D1 chip and USB host of PC.
NUC123 ICE Interface (J9): The ICE interface of NUC123ZD4AN0 microcontroller (U29) for
programming the internal Flash of NUC123 MCU. The internal Flash of NUC123 MCU had been
programmed and acts as an USB VCOM device before this NuMaker-BASE-MA35D1B1 board be
delivered by Nuvoton.
Pin No.
Pin Name
Functions
1
VCOM_3.3V
DC 3.3V
2
N123_ICE_DAT
SWD data pin of NUC123
3
N123_ICE_CLK
SWD clock pin of NUC123
4
N123_nRST
Reset pin of NUC123
5
VSS
Ground
Table 3-39 NUC123 ICE Interface (J9) Pin Function
3.2.19
Reset and RTC Wake-up Key Buttons
Reset Key Button (SW2): Press this key to reset the MA35D1 target chip on the NuMaker-SOM-
MA35D16A81 board.
RTC Wake-up Key Button (SW3): Press ths key to wake up the MA35D1 target chip on the
NuMaker-SOM-MA35D16A81 board from standby state.
3.2.20
TFT LCD Connector
LCM Connector (CON9):
