Nuvoton NuDesign HMI-N9H26 User manual

N9H26
Mar 15, 2019 Page 1of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
ARM®ARM926EJ-S Based
32-bit Microprocessor
N9H26K Series
NuDesign HMI-N9H26
User Manual
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

N9H26
Mar 15, 2019 Page 2of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
Table of Contents
1OVERVIEW .........................................................................................3
2NUDESIGN HMI-N9H26 INTRODUCTION....................................................4
2.1 NuDesign N9H26 & NuDesign LCD5Tiny Jumper Description.............................................7
2.1.1 Power Setting ...................................................................................................7
2.1.2 Debug Connector ...............................................................................................8
2.1.3 USB Host Connector ...........................................................................................8
2.1.4 USB High Device Connector..................................................................................9
2.1.5 Extended Connector ...........................................................................................9
2.1.6 Reset Button................................................................................................... 11
2.1.7 RTC wakeup Button.......................................................................................... 11
2.1.8 Speaker ........................................................................................................ 11
2.1.9 Microphone .................................................................................................... 11
2.1.10 Power Connector ............................................................................................. 12
2.1.11 RS-232 Connector............................................................................................ 12
2.1.12 KEY Matrix..................................................................................................... 12
2.1.13 TEST Points ................................................................................................... 12
2.2 Pin Assignment for Extended Connector .................................................................... 13
2.3 NuDesign HMI-N9H26 and NuDesign TFT-LCD5 PCB Placement..................................... 16
3NuDesign HMI-N9H26 Schematic............................................................. 20
3.1 NuDesign HMI-N9H26, Audio ................................................................................. 20
3.2 NuDesign HMI-N9H26, CPU................................................................................... 21
3.3 NuDesign HMI-N9H26, Debug ................................................................................ 22
3.4 NuDesign HMI-N9H26, LCM................................................................................... 23
3.5 NuDesign HMI-N9H26, Memory .............................................................................. 24
3.6 NuDesign HMI-N9H26, Power................................................................................. 25
3.7 NuDesign HMI-N9H26, USB................................................................................... 26
3.8 NuDesign TFT-LCD5 ........................................................................................... 27
4REVISION HISTORY............................................................................ 28

N9H26
Mar 15, 2019 Page 3of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
1 OVERVIEW
NuDesign HMI-N9H26 is the specific development tool for N9H26 series. Users can use
NuDesign HMI-N9H26 to develop and verify the application program easily.
NuDesign HMI-N9H26 includes two portions. One is NuDesign HMI-N9H26 main board and the
other is NuDesign TFT-LCD5 LCM display board. NuDesign HMI-N9H26 is the N9H26 series
evaluation board and NuDesign TFT-LCD5 is support Pixel Format 480(RGB)/272 display
Adaptor.
The N9H26 is built on the ARM926EJ-S CPU core and is integrated with USB2.0 HS Host/Device,
NAND/eMMC/SD/SDIO/SPI host controller, video codec (H.264), Jpeg codec, 32-channel SPU
(Sound Processing Unit), ADC, DAC and AAC accelerator for saving the BOM cost in various
kinds of application needs to the best choice.

N9H26
Mar 15, 2019 Page 4of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
2 NUDESIGN HMI-N9H26 INTRODUCTION
NuDesign HMI-N9H26 uses the ARM926EJ-S CPU core as the target micrprocessor.
NuDesign HMI-N9H26 is similar to other development boards. Users can use it to develop and
verify applications to emulate the real behavior. The NuDesign HMI-N9H26 can be a real system
controller to design users’ target systems, supports USB2.0 Host/Device high speed interface,
microphone, audio headphone out, audio amplifier, speaker out, JTAG interface, SPI Flash and
RS-232 interface.
NuDesign TFT-LCD5 is a LCM display with touch panel adaptor, it is supporting Pixel Format
480(RGB)/272 resolutions.
The NuDesign HMI-N9H26 development connects JTAG port to your target system (via JTAG
adaptor tool) and allows you to program and debug embedded programs on the target hardware.
Figure 2-1 NuDesign HMI-N9H26 PCB Board (Front)
SPI1 to UARTs
(CON6)
LCM Interface
(CON5)
Extended Connector
(JP2)
Keys Matrix
(S1~S6)

N9H26
Mar 15, 2019 Page 5of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
Figure 2-2 NuDesign HMI-N9H26 PCB Board (Back)
DC 5V Input
(CON3)
Power
ON/OFF
(S7)
USB
Device
(CON2)
USB
Host
(CON1)
SD Connector
(CON4)
Main Controller
(U9)
Reset
(S8)
JTAG Connector
(CON7)
RS-232
(CON8)
Speaker
Connector
(J2)
RS-232 Tranceiver
(U8)
Microphone
(M1)
Audio
Amplifier
(U10)
SPI Flash
(U6)

N9H26
Mar 15, 2019 Page 6of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
Figure 2-3 NuDesign TFT-LCD5 PCB Board (Front)
5”LCD & Touch Panel

N9H26
Mar 15, 2019 Page 7of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
Figure 2-4 NuDesign TFT-LCD5 PCB Board (Back)
NuDesign N9H26 & NuDesign LCD5Tiny Jumper Description2.1 NuDesign HMI-N9H26 is the specific development tool for NuDesign HMI-N9H26 series. Users
can use NuDesign HMI-N9H26 to develop and verify the application program easily.
NuDesign HMI-N9H26 includes two portions. One is NuDesign HMI-N9H26 and the other is
NuDesign TFT-LCD5. NuDesign HMI-N9H26 is the evaluation board and NuDesign TFT-LCD5 is
its Debug Adaptor. Thus, users do not need other additional ICE or debug equipment.
2.1.1 Power Setting
CON3: VDD5V Voltage connecter in NuDesign HMI-N9H26
CON5’s Pins 1 & 2: DVDD33 Voltage connector in NuDesign HMI-N9H26
CON5’s Pins 39, 40, 47 & 48: Power ground in NuDesign HMI-N9H26
CON5’s Pins 35 & 36: DVDD18 Voltage connector in NuDesign HMI-N9H26
CON1’s Pins 1 & 2: VD33 Voltage connector in NuDesign TFT-LCD5
CON1’s Pins 39, 40, 47 & 48: Power ground in NuDesign TFT-LCD5
LCM Connector
(CON2)
LED Driver
(U1)
LCM Interface
(CON1)

N9H26
Mar 15, 2019 Page 8of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
Boot Select:
JP1
BootFrom
Descriptions
0
Recovery Mode
Boot from USB
1
Norma; Mode
Boot from sequence:
SD SPI USB
2.1.2 Debug Connector
JP1: Shorted for Recovery Mode
CON5: Connector in target board (NuDesign HMI-N9H26) for connecting with LCM Module
board (NuDesign TFT-LCD5)
CON7: Connector in JTAG ICE adaptor for connecting with a target board (NuDesign HMI-
N9H26)
Pin No
Pin Name
Pin No
Pin Name
1
DVDD33
2
DVDD33
3
TRST
4
GND
5
TDI
6
GND
7
TMS
8
GND
9
TCK
10
GND
11
GND
12
GND
13
TDO
14
GND
15
RESETn
16
GND
17
NC
18
GND
19
NC
20
GND
2.1.3 USB Host Connector
CON1: USB A type Connector in NuDesign HMI-N9H26 USB host function connected to
USB device
J1: USB host power support selection
J1
Power Enable
Descriptions
Pins 1 & 2 shorted
Always ON
Power Chip U1 always enable by VDD5V

N9H26
Mar 15, 2019 Page 9of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
Pins 2 & 3 shorted
Enable by GPD6
Power Chip U1 enable by U9’s pin 115
2.1.4 USB High Device Connector
CON2: Mini USB Connector in NuDesign HMI-N9H26 USB device high speed function
connected to PC USB port
2.1.5 Extended Connector
CON5: Pins in NuDesign HMI-N9H26
Pin No
Pin Name
Pin No
Pin Name
Pin No
Pin Name
Pin No
Pin Name
01
DVDD33
02
DVDD33
33
NC
34
NC
03
GPA3
04
NC
35
DVDD18
36
DVDD18
05
GPD11
06
GPD10
37
GPD0
38
NC
07
GPD9
08
GPB15
39
GND
40
GND
09
GPB12
10
GPB11
41
GPG13
42
GPG9
11
GPB10
12
GPB9
43
GPG14
44
GPG15
13
GPB8
14
GPB7
45
NC
46
GPG12
15
GPE1
16
GPE0
47
GND
48
GND
17
GPC15
18
GPC14
49
NC
50
RESET
19
GPC13
20
GPC12
51
NC
52
NC
21
GPC11
22
GPC10
53
GPB14
54
GPB13
23
GPC9
24
GPC8
55
NC
56
NC
25
GPC7
26
GPC6
57
NC
58
GPB6
27
GPC5
28
GPC4
59
GPB5
60
GPB4
29
GPC3
30
GPC2
61
GPB3
62
GPB2
31
GPC1
32
GPC0
63
GPB1
64
GPB0

N9H26
Mar 15, 2019 Page 10 of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
JP2: Pins in NuDesign HMI-N9H26
Pin No
Pin Name
Pin No
Pin Name
01
NC
02
GPD7
03
GPA12
04
GPD8
05
GPA13
06
GPE10
07
GPA14
08
GPE11
CON6: SPI2UART in NuDesign HMI-N9H26
Pin No
Pin Name
Pin No
Pin Name
01
DVDD33
02
NC
03
VS
04
NC
05
RESET
06
GPB1
07
GPG3
08
GPG5
09
GPG2
10
GPG4
CON4: Mini SD0 connect in NuDesign HMI-N9H26
Pin No
Pin Name
01
SDAT2
02
SDAT3
03
SDCMD
04
DVDD33
05
SDCLK
06
VS
07
SDDAT1
08
SDDTA0
09
SDDAT1

N9H26
Mar 15, 2019 Page 11 of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
CON1: Pins in NuDesign TFT-LCD5
Pin No
Pin Name
Pin No
Pin Name
Pin No
Pin Name
Pin No
Pin Name
01
VD33
02
VD33
33
NC
34
NC
03
LCS
04
BLEn
35
NC
36
DVDD18
05
LDEN
06
LVsync
37
PWM
38
NC
07
LHsync
08
LClk
39
VS
40
VS
09
LD23
10
LD22
41
XP
42
PAD1
11
LD21
12
LD20
43
XM
44
YM
13
LD19
14
LD18
45
NC
46
YP
15
LD17
16
LD16
47
VS
48
VS
17
LD15
18
LD14
49
NC
50
NC
19
LD13
20
LD12
51
NC
52
NC
21
LD11
22
LD10
53
NC
54
NC
23
LD9
24
LD8
55
NC
56
NC
25
LD7
26
LD6
57
NC
58
NC
27
LD5
28
LD4
59
NC
60
NC
29
LD3
30
LD2
61
NC
62
NC
31
LD1
32
LD0
63
NC
64
NC
2.1.6 Reset Button
S8: Reset button in NuDesign HMI-N9H26
2.1.7 RTC wakeup Button
S7: RTC wakeup button in NuDesign HMI-N9H26,
2.1.8 Speaker
J2: Power Amplifier speaker connect in NuDesign HMI-N9H26.
2.1.9 Microphone
M1: External electret condenser microphone connect in NuDesign HMI-N9H26, Pin 1 for

N9H26
Mar 15, 2019 Page 12 of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
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

N9H26
Mar 15, 2019 Page 13 of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
Pin Assignment for Extended Connector2.2 NuDesign HMI-N9H26 provides N9H26K51N on board and the each pin assign dedicated
function as table below:
Table 2-1 is the pin assignment for NuDesign HMI-N9H26 & TFT-LCD5
GPIO
Pin No.
Pin Name
Function 1
Function 2
Descriptions
GPE.4
1
SDDAT[2]
SD0DAT2
SD 0
GPE.5
2
SDDAT[3]
SD0DAT3
GPE.6
3
SDCMD
SD0CMD
GPE.7
4
SDCLK
SD0CLK
GPE.2
5
SDDAT[0]
SD0DAT0
GPE.3
6
SDDAT[1]
SD0DAT1
GPB.12
7
SPDATA[7]
LVDAT23
CON5.9
LCM
GPB.11
8
SPDATA[6]
LVDAT22
CON5.10
9
UD_CDET
UD_CDET
USB Device
10
VDD
DVDD12
TP5
Core Power
11
MVDDQ1
DVDD18
TP1
Memory Power
12
MVDDQ1
DVDD18
GPB.10
13
SPDATA[5]
LVDAT21
CON5.11
LCM
GPB.9
14
SPDATA[4]
LVDAT20
CON5.12
GPB.8
15
SPDATA[3]
LVDAT19
CON5.13
GPB.7
16
SPDATA[2]
LVDAT18
CON5.14
GPB.6
17
SPDATA[1]
Row 3
CON5.58
Keys Matrix
GPB.5
18
SPDATA[0]
Row 2
CON5.59
GPB.4
19
SFIELD
Row 1
CON5.60
GPB.3
20
SVSYNC
Column 1
CON5.61
GPB.2
21
SHSYNC
Column 2
CON5.62
GPB.1
22
SPCLK
SPI1_INT
CON5.63
SPI2UART
GPB.0
23
SCLKO
CON5.64
GPIO
24
XOUT
XOUT
12MHz
25
XIN
XIN
26
VDD33_2
DVDD33
I/O Power
27
VDD
DVDD12
Core Power
28
UD_VDD12_PLL
DVDD12
29
UD_DM
UD_DM
USB Device
30
UD_DP
UD_DP
31
UD_VDD33_TRV
DVDD33
I/O Power
32
UD_REXT
UD_REXT
USB Device
33
SAR_AVDD33
AVDD33
ADC
GPG.14
34
SAR_TP_XM
X2
CON5.43
ADC/Touch Panel
GPG.15
35
SAR_TP_YM
Y2
CON5.44
GPG.13
36
SAR_TP_XP
X1
CON5.41
GPG.12
37
SAR_TP_YP
Y1
CON5.46
GPG.7
38
SAR_AIN3(VSENSE)
VSENSE
TP7
ADC
GPG.9
39
SAR_AHS
AHS
PAD1
GPG.8
40
SAR_AIN2
AIN2
TP8
41
SAR_AVSS33
AGND
TP9
42
HOST_PHY_RES
UH_REXT
USB host
43
HOST_VDD33_BIAS
UH_VDD33
44
HOST_PHY_DP
UH_DP
45
HOST_PHY_DM
UH_DM
46
HOST_VDD12_PLL
UH_VDD12
GPB13
47
ISCK
CON5.54
GPIO

N9H26
Mar 15, 2019 Page 14 of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
GPB14
48
ISDA
CON5.53
GPA.1
49
GPA[1]
SD_CD
SD 0
GPA.0
50
GPA[0]
PA_EN
Audio
51
RST_
RESET
System Reset
GPA.3
52
GPA[3]
LCS
CON5.3
LCM
GPC.0
53
LVDATA[0]
LVDATA0
CON5.32
GPC.1
54
LVDATA[1]
LVDATA1
CON5.31
GPC.2
55
LVDATA[2]
LVDATA2
CON5.30
GPC.3
56
LVDATA[3]
LVDATA3
CON5.29
GPC.4
57
LVDATA[4]
LVDATA4
CON5.28
GPC.5
58
LVDATA[5]
LVDATA5
CON5.27
GPC.6
59
LVDATA[6]
LVDATA6
CON5.26
GPC.7
60
LVDATA[7]
LVDATA7
CON5.25
GPC.8
61
LVDATA[8]
LVDATA8
CON5.24
GPC.9
62
LVDATA[9]
LVDATA9
CON5.23
GPC.10
63
LVDATA[10]
LVDATA10
CON5.22
64
VSS
GND
Ground
65
VDD33_0
DVDD33
I/O Power
GPC.11
66
LVDATA[11]
LVDATA11
CON5.21
LCM
GPC.12
67
LVDATA[12]
LVDATA12
CON5.20
GPC.13
68
LVDATA[13]
LVDATA13
CON5.19
GPC.14
69
LVDATA[14]
LVDATA14
CON5.18
GPC.15
70
LVDATA[15]
LVDATA15
CON5.17
GPE.0
71
LVDATA[16]
LVDATA16
CON5.16
GPE.1
72
LVDATA[17]
LVDATA17
CON5.15
GPD.11
73
LVDE
LDEN
CON5.5
GPD.10
74
LVSYNC
LVSYNC
CON5.6
GPD.9
75
LHSYNC
LHSYNC
CON5.7
GPB.15
76
LPCLK
LPCLK
CON5.8
GPD.4
77
TRSTn
TRST0n
JTAG
GPD.3
78
TDO
TDO0
GPD.2
79
TDI
TDI0
GPD.1
80
TMS
TMS0
GPD.0
81
TCK
Back Light Dim
TCK0
LCM/JTAG
82
VDD
DVDD12
Core Power
83
MVDDQ0
DVDD18
Memory Power
84
MVDDQ0
DVDD18
GPG.3
85
TVDAC_REXT
SPI1_CS0n
CON6.7
SPI2UART
GPG.5
86
TVDAC_VREF
SPI1_DO
CON6.8
GPG.4
87
TVDAC_COMP
SPI1_DI
CON6.10
GPG.2
88
TVDAC_TVOUT
SPI1_CLK
CON6.9
89
TVDAC_AVD33
DVDD33
I/O Power
90
XOSC_AVDD
RTC_VDD33
TP4
RTC
91
RTC_RPWR
RTC_RPWR
TP3
92
RTC_RWAKE_
RTC_RWAKE_
93
RTC_XIN
RTC_XIN
94
RTC_XOUT
RTC_XOUT
95
AADC_MIC_BIAS
MIC_BIAS
Audio
96
ADAC_VMID
ADC_MID
97
AADC_MIC_IN_P
MIC_P
M1.1
98
AADC_MIC_IN_N
MIC_N
M1.2
99
ADAC_AVDD33
AVDD33
100
ADAC_AVSS33
AGND
TP9
101
ADAC_HPOUT_R
RHPOUT
J2.1

N9H26
Mar 15, 2019 Page 15 of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
102
ADAC_HPOUT_L
LHPOUT
J2.2
103
ADAC_HPVDD33
AVDD33
GPA.10
104
URTXD
TXD
UART 0
GPA.11
105
URRXD
RXD
106
VDD
DVDD12
Core Power
107
ND[0]
CHIPCFG0
JP1
Power On Setting
108
ND[1]
109
ND[2]
Pull-low
110
ND[3]
JP2.1
GPIO
GPA.12
111
ND[4]
JP2.3
GPA.13
112
ND[5]
JP2.5
GPA.14
113
ND[6]
JP2.7
GPA 15
114
ND[7]
GPD.6
115
NBUSY1_
OV_FLAG
USB host
GPD.5
116
NBUSY0_
USBH_PWEN
J1
GPD.8
117
NWR_
JP2.4
GPIO
GPD.7
118
NRE_
JP2.2
GPE.11
119
NCLE
JP2.8
GPE.10
120
NALE
JP2.6
GPE.9
121
NCS1_
SPI0_D3
SPI 0
GPE.8
122
NCS0_
SPI0_D2
123
VDD33_1
DVDD33
I/O Power
GPD.14
124
SPI0_DI
SPI0_DI (D1)
SPI 0
GPD.13
125
SPI0_CSn
SPI0_CS0n
GPD.15
126
SPI0_DO
SPI0_DO (D0)
GPD.12
127
SPI0_CLK
SPI0_CLK
128
VSS
GND
Ground
Table 2-1 Pin Assignment for N9H26K51N

N9H26
Mar 15, 2019 Page 16 of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
NuDesign HMI-N9H26 and NuDesign TFT-LCD5 PCB Placement2.3 Users can refer to Figure 2-5 through Figure 2-8 for the NuDesign HMI-N9H26 PCB placements.
Figure 2-5 NuDesign HMI-N9H26 PCB Placement (Front)

N9H26
Mar 15, 2019 Page 17 of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
Figure 2-6 NuDesign HMI-N9H26 PCB Placement (Back)

N9H26
Mar 15, 2019 Page 18 of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
Figure 2-7 NuDesign TFT-LCD5 PCB Placement (Front)

N9H26
Mar 15, 2019 Page 19 of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
Figure 2-8 NuDesign TFT-LCD5 PCB Placement (Back)

N9H26
Mar 15, 2019 Page 20 of 29 Rev 1.01
NUDESIGN HMI-N9H26 USER MANUAL
3 NUDESIGN HMI-N9H26 SCHEMATIC
NuDesign HMI-N9H26, Audio3.1
RHPOUT
C23
NC/300pF
CP36
10uF
MIC_P
R49
1.2K
AGND
ESD1_9
ESD7371XV2T1G
MIC
ESD1_6
ESD7371XV2T1G
VDD50
LHPOUT
R50
1.2K
L10
NC/FB
1 2
PA_EN
ADC_MID
C25
1uF R52 10K
ESD1_7
ESD7371XV2T1G
+
-
C19
NC/300pF
C26
NC/100pF
U10
ISD8101
1
2
3
4
5
6
7
8
9
SPN
SPP
VSS
INP
INV
VREF
CE
VDD
GPAD
GPA0
C27
NC/100pF
MIC_N
L9
NC/FB
1 2
J2
Speak 8ohm
1
2
CB32
0.1uF
CP35
47uF
C21
1uF
C18
1uF
CB33
0.1uF
R51
0R
SPK
R53
10K
C24
1uF
C28
1uF
TP9
AGND
C20
NC/300pF M1 6mm-Microphone
1
2
C29
0.1uF
MIC_BIAS
C22
NC/300pF
ESD1_8
ESD7371XV2T1G
R48
680
RX8
0