Nuvoton NuMaker-PFM-M2351 User manual

MuMaker-PFM-M2351
Aug 29, 2018 Page 1of 36 Rev 1.00
NUMAKER-PFM-M2351 USER MANUAL
Maker Nu-mbed NUC472 User Manual
ARM®Cortex®-M
32-bit Microcontroller
NuMaker-PFM-M2351
User Manual
NuMicro®M23 Series
The information described in this document is the exclusive intellectual property of
Nuvoton Technology Corporation and shall not be reproduced without permission from Nuvoton.
Nuvoton is providing this document only for reference purposes of NuMicro microcontroller based system
design. Nuvoton assumes no responsibility for errors or omissions.
All data and specifications are subject to change without notice.
For additional information or questions, please contact: Nuvoton Technology Corporation.
www.nuvoton.com

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Table of Contents
1Overview.............................................................................................6
Introduction to NuMaker-PFM-M2351 Board...................................................... 61.1
M2351 Series MCU Features........................................................................ 71.2
NuMaker-PFM-M2351 Board Features ............................................................ 81.3
2NuMaker-PFM-M2351 Board Overview ........................................................9
Front View............................................................................................... 92.1
Rear View..............................................................................................10
2.2
Arduino UNO Compatible Interface................................................................112.3
Pin Assignment for Extended Connectors........................................................132.4
System Configuration ................................................................................182.5
2.5.1 5V Power Source ............................................................................................. 18
2.5.2 3.3V Power Source........................................................................................... 18
2.5.31.8V Power Source........................................................................................... 18
2.5.4 USB Connectors .............................................................................................. 19
2.5.5 Arduino UNO Compatible Interface Connectors......................................................... 19
2.5.6 Extended Connectors ........................................................................................ 19
2.5.7 SWD / ETM Interface......................................................................................... 19
2.5.8 Phone Jack .................................................................................................... 19
2.5.9 MicroSD Card Slot............................................................................................ 19
2.5.10 Push-Buttons .................................................................................................. 20
2.5.11 LEDs............................................................................................................ 20
2.5.12 Power Connectors............................................................................................ 20
Wi-Fi Module (ESP-03) ..............................................................................212.6
Secure Serial Flash (W77F32W)...................................................................212.7
Audio Codec (NAU88L25)...........................................................................212.8
Nu-Link-Me ............................................................................................232.9
PCB Placement .......................................................................................242.10
3NuMaker-PFM-M2351 Schematics............................................................ 25
Nu-Link-Me ............................................................................................253.1
M2351KIAAE ..........................................................................................263.2
USB 2.0 FS OTG .....................................................................................273.3
Power Supply..........................................................................................283.4
MCU Connector.......................................................................................29
3.5

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Arduino UNO Compatible Interface................................................................303.6
Audio Codec (NAU88L25)...........................................................................313.7
MicroSD Card .........................................................................................323.8
Wi-Fi Module (ESP-03) ..............................................................................333.9
Secure Serial Flash (W77F32W)...................................................................343.10
4REVISION HISTORY............................................................................ 35

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List of Figures
Figure 1-1 NuMaker-PFM-M2351 Board ......................................................................................... 6
Figure 2-1 Front View of NuMaker-PFM-M2351 Board................................................................... 9
Figure 2-2 Rear View of NuMaker-PFM-M2351 Board.................................................................. 10
Figure 2-3 Arduino UNO Compatible Interface.............................................................................. 11
Figure 2-4 M2351KIAAE Extended Connectors ............................................................................ 13
Figure 2-5 SWD / ETM Interface 20 Pin Connector....................................................................... 19
Figure 2-6 3.5mm Phone Jack Diagram ........................................................................................ 22
Figure 2-7 Front Placement ........................................................................................................... 24
Figure 2-8 Rear Placement............................................................................................................ 24
Figure 3-1 Nu-Link-Me Circuit........................................................................................................ 25
Figure 3-2 M2351KIAAE Pin Assignment...................................................................................... 26
Figure 3-3 USB 2.0 FS OTG Circuit............................................................................................... 27
Figure 3-4 Power Circuit and Configurations................................................................................. 28
Figure 3-5 MCU Connector............................................................................................................ 29
Figure 3-6 Arduino UNO Compatible Interface.............................................................................. 30
Figure 3-7 Audio Codec Circuit...................................................................................................... 31
Figure 3-8 MicroSD Card Circuit.................................................................................................... 32
Figure 3-9 Wi-Fi Module Circuit ..................................................................................................... 33
Figure 3-10 MicroSD Card Circuit.................................................................................................. 34

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List of Tables
Table 2-1 Arduino UNO Interface Mapping with M2351KIAAE GPIO ........................................... 12
Table 2-2 Extended Connector JP6 Interface with M2351KIAAE GPIO ....................................... 14
Table 2-3 Extended Connector JP8 Interface with M2351KIAAE GPIO ....................................... 15
Table 2-4 Extended Connector JP7 Interface with M2351KIAAE GPIO ....................................... 16
Table 2-5 Extended Connector JP9 Interface with M2351KIAAE GPIO ....................................... 17
Table 2-6 Optional Function of ESP-03 ......................................................................................... 21
Table 2-7 W77F32W Mapping with M2351KIAAE......................................................................... 21
Table 2-8 NAU88L25 Mapping with M2351KIAAE ........................................................................ 22
Table 2-9 Optional Function of Nu-Link-Me................................................................................... 23

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1 OVERVIEW
This user manual is aimed to introduce how to use the Nuvoton NuMaker-PFM-M2351 board.
Introduction to NuMaker-PFM-M2351 Board1.1
The NuMaker-PFM-M2351 is a development board based on an Arm® Cortex®-M23 microcontroller
(MCU) –M23 series which has very rich peripherals.
This board lets users easily develop the secure application program on this board. The NuMaker-
PFM-M2351 also enables users to develop and verify the application programs through the
peripherals and interfaces on MCU and this board.
Furthermore, this board also provides an Arduino UNO compatible interface for users to develop the
specific function with any of Arduino modules or kits. Regarding to the Arduino, users can link directly
to the Wikipedia website: en.wikipedia.org/wiki/Arduino to get more detailed information.
The NuMaker-PFM-M2351 board consists of the M2351 Platform and Nu-Link-Me ICE Bridge. Figure
1-1 shows the NuMaker-PFM-M2351 board.
Figure 1-1 NuMaker-PFM-M2351 Board
The left portion of this board is the M2351 Platform that includes the target chip M2351 MCU based on
the Arm®Cortex®-M23 core with Armv8-M architecture and TrustZone®security technologies, and the
other related on-board application parts and connectors.
The right portion of this board is a Nu-Link-Me ICE Bridge based on the SWD (Serial Wire Debug)
interface connected with the target chip, allowing users to program the application code to the Flash of
target chip through the USB port from PC Host.

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M2351 Series MCU Features1.2
M2351KIAAE in LQFP128 package
Arm®Cortex®-M23 core running up to 64 MHz with Armv8-M architecture and
TrustZone® technology
Built-in LDO for wide operating voltage from 1.6 V to 3.6 V
512 Kbytes Flash
96 Kbytes SRAM
32 Kbytes Secure Boot ROM
External Bus Interface (EBI)
GPIO
Peripheral DMA (PDMA)
Timer
EPWM and BPWM
Quadrature Encoder Interface (QEI)
WDT and WWDT
RTC
UART
Smart Card (ISO-7816-3) Host Interface
I2C
SPI
I2S
Universal Serial Control Interface (USCI)
USB 2.0 Full-Speed OTG / Host / Device
CAN 2.0
SD Host
Cryptographic Accelerator
CRC
ADC
DAC
Comparator

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NuMaker-PFM-M2351 Board Features1.3
On-board Nu-Link-Me ICE Bridge (Mass storage as USB Disk drive) for drag and drop
programming
Arduino UNO compatible interface
M2351 extended interface connectors
ETM (embedded trace macrocell) debug interface for instruction and data tracing of a
Processor
Secure Serial Flash (W77F32W) for secure data storage, cryptographic key storage, and
general data storage
Audio codec (NAU88L25) with Microphone In and Headphone Out
Wi-Fi module for wireless application
USB 2.0 Full-Speed OTG / Host / Device
MicroSD Card slot for T-Flash
Three push-buttons: one is for reset and the other two are for user-defined
Three LEDs: one is for power indication and the other two are for user-defined

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2 NUMAKER-PFM-M2351 BOARD OVERVIEW
Front View2.1
Figure 2-1 shows the main components and connectors from the front side of NuMaker-PFM-M2351
board.
The following lists components and connectors from the front view:
Target Chip: M2351KIAAE (U1)
Nu-Link-Me ICE Bridge: ICE Controller NUC12SRE3DE (ICEU2), USB connector (ICEJ)
to PC Host
Secure Serial Flash W77F32W (U11)
Audio: Audio Codec NAU88L25 (U8), Headphone (CN2)
Arduino UNO compatible interface connectors (NU1, NU2, NU5, NU6, NU7)
M2351 extended interface connectors (JP6, JP7, JP8 and JP9)
USB: USB 2.0 Full-Speed OTG connector (CON2)
Wi-Fi module: ESP-03 (U10)
Push-buttons (SW2, SW3)
LEDs (I/O1 and I/O2)
Figure 2-1 Front View of NuMaker-PFM-M2351 Board

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Rear View2.2
Figure 2-2 shows the main components and connectors from the rear side of NuMaker-PFM-M2351
board.
The following lists components and connectors from the rear view:
MicroSD Card Slot: T-Flash slot (U9)
Figure 2-2 Rear View of NuMaker-PFM-M2351 Board

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Arduino UNO Compatible Interface2.3
Figure 2-3 shows the Arduino UNO compatible interface.
Figure 2-3 Arduino UNO Compatible Interface

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Header
NuMaker-PFM-M2351
Header
NuMaker-PFM-M2351
Compatible to
Arduino UNO
GPIO Pin of M2351
Compatible to
Arduino UNO
GPIO Pin of M2351
N
U
1
NU1.1
NC
-
N
U
6
NU6.10
SCL
PG.2
NU1.2
IOREF
NU6.9
SDA
PG.3
NU1.3
RESET
RESET
NU6.8
VREF
-
NU1.4
3VCC
-
NU6.7
GND
NU1.5
5VCC
NU6.6
D13
PF.8
NU1.6
GND
NU6.5
D12
PF.7
NU1.7
GND
NU6.4
D11
PF.6
NU1.8
VIN
NU6.3
D10
PF.9
N
U
2
NU2.1
A0
PB.11
NU6.2
D9
PC.10
NU2.2
A1
PB.10
NU6.1
D8
PC.9
NU2.3
A2
PB.9
N
U
5
NU5.8
D7
PC.11
NU2.4
A3
PB.8
NU5.7
D6
PC.12
NU2.5
A4
PB.4
NU5.6
D5
PB.2
NU2.6
A5
PB.5
NU5.5
D4
PB.3
N
U
7
NU7.1
MISO
PE.1
NU5.4
D3
PB.6
NU7.2
VCC
3.3V
NU7.3
CLK
PH.8
NU7.4
MOSI
PE.0
NU5.3
D2
PB.7
NU7.5
RESET
RESET
NU5.2
D1
PA.9
NU7.6
GND
GND
NU5.1
D0
PA.8
NU7.7
CS
PH.9
NU7.8
PH.10
PH.10
Table 2-1 Arduino UNO Interface Mapping with M2351KIAAE GPIO

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Pin Assignment for Extended Connectors2.4
The NuMaker-PFM-M2351 provides the M2351KIAAE target chip on board and extended connectors
(JP6, JP7, JP8 and JP9) for LQFP128-pin. Figure 2-4 shows the M2351KIAAE extended connectors.
Figure 2-4 M2351KIAAE Extended Connectors

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Header
M2351KIAAE
Header
M2351KIAAE
Pin No.
Function
Pin No
Function
JP6
JP6.1
1
PB.5
JP6
JP6.2
2
PB.4
JP6.3
3
PB.3
JP6.4
4
PB.2
JP6.5
5
PC.12
JP6.6
6
PC.11
JP6.7
7
PC.10
JP6.8
8
PC.9
JP6.9
9
PB.1
JP6.10
10
PB.0
JP6.11
11
GND
JP6.12
12
3VCC
JP6.13
13
PA.11
JP6.14
14
PA.10
JP6.15
15
PA.9
JP6.16
16
PA.8
JP6.17
17
PC.13
JP6.18
18
PD.12
JP6.19
19
PD.11
JP6.20
20
PD.10
JP6.21
21
PG.2
JP6.22
22
PG.3
JP6.23
23
PG.4
JP6.24
24
PF.11
JP6.25
25
PF.10
JP6.26
26
PF.9
JP6.27
27
PF.8
JP6.28
28
PF.7
JP6.29
29
PF.6
JP6.30
30
VBAT
JP6.31
31
XT32_IN
JP6.32
32
XT32_OUT
Table 2-2 Extended Connector JP6 Interface with M2351KIAAE GPIO

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Header
M2351KIAAE
Header
M2351KIAAE
Pin No.
Function
Pin No
Function
JP8
JP8.1
33
PH.4
JP8
JP8.2
34
PH.5
JP8.3
35
PH.6
JP8.4
36
PH.7
JP8.5
37
PF.3
JP8.6
38
PF.2
JP8.7
39
GND
JP8.8
40
VCC
JP8.9
41
PE.8
JP8.10
42
PE.9
JP8.11
43
PE.10
JP8.12
44
PE.11
JP8.13
45
PE.12
JP8.14
46
PE.13
JP8.15
47
PC.8
JP8.16
48
PC.7
JP8.17
49
PC.6
JP8.18
50
PA.7
JP8.19
51
PA.6
JP8.20
52
GND
JP8.21
53
VCC
JP8.22
54
LDO_CAP
JP8.23
55
PA.5
JP8.24
56
PA.4
JP8.25
57
PA.3
JP8.26
58
PA.2
JP8.27
59
PA.1
JP8.28
60
PA.0
JP8.29
61
VDDIO
JP8.30
62
PE.14
JP8.31
63
PE.15
JP8.32
64
nRESET
Table 2-3 Extended Connector JP8 Interface with M2351KIAAE GPIO

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Header
M2351KIAAE
Header
M2351KIAAE
Pin No.
Function
Pin No
Function
JP7
JP7.1
65
ICEDAT
JP7
JP7.2
66
ICECLK
JP7.3
67
PD.9
JP7.4
68
PD.8
JP7.5
69
PC.5
JP7.6
70
PC.4
JP7.7
71
PC.3
JP7.8
72
PC.2
JP7.9
73
PC.1
JP7.10
74
PC.0
JP7.11
75
GND
JP7.12
76
VCC
JP7.13
77
PG.9
JP7.14
78
PG.10
JP7.15
79
PG.11
JP7.16
80
PG.12
JP7.17
81
PG.13
JP7.18
82
PG.14
JP7.19
83
PG.15
JP7.20
84
PD.7
JP7.21
85
PD.6
JP7.22
86
PD.5
JP7.23
87
PD.4
JP7.24
88
PD.3
JP7.25
89
PD.2
JP7.26
90
PD.1
JP7.27
91
PD.0
JP7.28
92
PD.13
JP7.29
93
PA.12
JP7.30
94
PA.13
JP7.31
95
PA.14
JP7.32
96
PA.15
Table 2-4 Extended Connector JP7 Interface with M2351KIAAE GPIO

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Header
M2351KIAAE
Header
M2351KIAAE
Pin No.
Pin Name
Pin No
Pin Name
JP9
JP9.1
97
PE.7
JP9
JP9.2
98
PE.6
JP9.3
99
PE.5
JP9.4
100
PE.4
JP9.5
101
PE.3
JP9.6
102
PE.2
JP9.7
103
GND
JP9.8
104
VCC
JP9.9
105
PE.1
JP9.10
106
PE.0
JP9.11
107
PH.8
JP9.12
108
PH.9
JP9.13
109
PH.10
JP9.14
110
PH.11
JP9.15
111
PD.14
JP9.16
112
GND
JP9.17
113
VSW
JP9.18
114
VCC
JP9.19
115
LDO_CAP
JP9.20
116
PB.15
JP9.21
117
PB.14
JP9.22
118
PB.13
JP9.23
119
PB.12
JP9.24
120
AVDD
JP9.25
121
VREF
JP9.26
122
AVSS
JP9.27
123
PB.11
JP9.28
124
PB.10
JP9.29
125
PB.9
JP9.30
126
PB.8
JP9.31
127
PB.7
JP9.32
128
PB.6
Table 2-5 Extended Connector JP9 Interface with M2351KIAAE GPIO

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System Configuration2.5 2.5.1 5V Power Source
ICEJ: USB connector in Nu-Link-Me to program code and suppy 5V power from PC Host.
CON2: USB 2.0 Full-Speed OTG connector on the NuMaker-PFM-M2351 board to supply
5V power from PC Host.
NU1 pin5: VDD5V voltage connector on the NuMaker-PFM-M2351 board to supply 5V
power from external power source.
Power
Source
Connector
Description
ICE_USBVBUS
ICEJ
ICEJ supplies the 5V power from PC Host.
Note: L9 should be shorted 0 Ω.
USB_VBUS
CON2
CON2 supplies the 5V power from PC Host.
Note: L12 should be shorted 0 Ω.
External 5V Source
NU1 pin5
NU1 pin5 supplies the 5V power from external power source.
Note: L10 should be shorted 0 Ω.
2.5.2 3.3V Power Source
ICEU1:The voltage regular converts the 5V source to 3.3V and supplies it to the NuMaker-
PFM-M2351 board.
U4: The voltage regular converts the 5V source to 3.3V and supplies it to the NuMaker-
PFM-M2351 board.
Voltage
Regular
5V
Source
Description
ICEU1
ICE_USB_VBUS
ICEU1 converts ICE_USB_VBUS to 3.3V and supplies it to the M2351
platform board.
Note: L4 should be shorted 0Ω.
U4
USB_VBUS
U4 converts USB_VBUS to 3.3V and supplies it to the M2351 platform board.
Note: L5 should be shorted 0Ω.
2.5.3 1.8V Power Source
U7: The voltage regular converts the VCC source to 1.8V and supplies it to the NuMaker-
PFM-M2351 board.
Voltage
Regular
Power
Source
Description
U7
VCC
U7 converts VCC to 1.8V and supplies it to the M2351 platform board.

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2.5.4 USB Connectors
ICEJ: USB connector (ICE) in Nu-Link-Me that connects to a USB Host port on a PC to
program code and supply power.
CON2: USB 2.0 connector (OTG) on the NuMaker-PFM-M2351 board for USB OTG
application use.
2.5.5 Arduino UNO Compatible Interface Connectors
NU1, NU2, NU5, NU6 and NU7: Arduino UNO compatible pins on the NuMaker-PFM-
M2351 board.
2.5.6 Extended Connectors
JP6, JP7, JP8 and JP9: Extended connectors interface pins on the NuMaker-PFM-M2351
board.
2.5.7 SWD / ETM Interface
The ETM is a debug interface that enables reconstruction of program execution. It provides
instruction and data tracing of a processor. The traced data could be used to capture events
leading to a breakpoint, or used for code coverage statistics or execution information.
ETM1: SWD / ETM interface connector with 20 pins on the NuMaker-PFM-M2351 board.
Figure 2-5 SWD / ETM Interface 20 Pin Connector
2.5.8 Phone Jack
CN2:Phone jack connector on NuMaker-PFM-M2351 for audio application use.
2.5.9 MicroSD Card Slot
U9:MicroSD card slot for application use.

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2.5.10 Push-Buttons
SW1: Reset button to reset the target chip on NuMaker-PFM-M2351 board.
SW2, SW3: Two Push-Buttons for user to control application process.
2.5.11 LEDs
POWER: The power LED indicates that the NuMaker-PFM-M2351 board is powered.
I/O1 and I/O2: Only for application use.
2.5.12 Power Connectors
JP2, JP3: 3VCC connectors on the NuMaker-PFM-M2351 board.
JP4, JP5, JP10 and JP11: GND connectors on the NuMaker-PFM-M2351 board.