5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Board Function
Page
Title Page
1
Rev. Description
Revision History
EFM8BB50 Pro Kit
A00
User Interface 2
Initial version
LEGAL NOTICE:
SILICON LABORATORIES INC. (“SILICON LABS”) AND/OR ITS LICENSORS DO NOT WARRANT THE ACCURACY
OR COMPLETENESS OF THIS SCHEMATIC OR ANY INFORMATION CONTAINED WITHIN THIS SCHEMATIC.
IT IS PROVIDED “AS-IS” FOR REFERENCE ONLY. SILICON LABS DOES NOT WARRANT THAT THIS DESIGN
WILL MEET THE SPECIFICATIONS, BE SUITABLE FOR YOUR APPLICATION OR FIT FOR ANY PARTICULAR
PURPOSE, OR WILL OPERATE IN YOUR IMPLEMENTATION. SILICON LABS AND ITS LICENSORS DO NOT
WARRANT THAT THE DESIGN IMPLIED IN THIS SCHEMATIC IS PRODUCTION-WORTHY. YOU SHOULD
COMPLETELY VALIDATE AND TEST YOUR DESIGN IMPLEMENTATION TO CONFIRM SYSTEM FUNCTIONALITY
FOR YOUR APPLICATION.
Signal Assignments 3
EFM8 Power & I/O 4
5Target Voltage Supply
7
AEM
8
Debug Interface
9
Simplicity & VCOM
10
Power
11
Board Controller
Board Controller Misc
6
Size
Designed
Revision
Sheet
of
Approved
Sheet Modified Date
Board Number
Board Name
Page Title
COPYRIGHT SILICON LABORATORIES INC. 2021 CONFIDENTIAL – SUBJECT TO TERMS OF USE
Friday, September 03, 2021
1 11
A3
Title Page
PEP RGU
A00
EFM8BB50 Pro Kit
BRD5208A
Size
Designed
Revision
Sheet
of
Approved
Sheet Modified Date
Board Number
Board Name
Page Title
COPYRIGHT SILICON LABORATORIES INC. 2021 CONFIDENTIAL – SUBJECT TO TERMS OF USE
Friday, September 03, 2021
1 11
A3
Title Page
PEP RGU
A00
EFM8BB50 Pro Kit
BRD5208A
Size
Designed
Revision
Sheet
of
Approved
Sheet Modified Date
Board Number
Board Name
Page Title
COPYRIGHT SILICON LABORATORIES INC. 2021 CONFIDENTIAL – SUBJECT TO TERMS OF USE
Friday, September 03, 2021
1 11
A3
Title Page
PEP RGU
A00
EFM8BB50 Pro Kit
BRD5208A
PCB1
PCB5208A
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Connected VDISP
1
0
MCU
The EFM8 always controls ownership of the display
using the DISP_ENABLE signal.
DISP_ENABLE
Push Buttons
Silkscreen:
BTN0
EXP Header
User LEDs Relative Humidity & Temperature Sensor
Memory LCD-TFT Display & Multiplexer Analog Joystick
Top Row
EXP Header Functionality
BC
VMCU
BC_DISP_PWR_ENABLE
BC_DISP_AVAILABLE
GND
3V3
CMP1.2/ADC0.11
Reserved for EXP Board Identification
Reserved for EXP Board Identification
CMP1.1/ADC0.8
CMP1.0/ADC0.5
CMP0.2/ADC0.4
CMP0.4
CMP1.0/ADC0.6
CMP0.1/ADC0.2
CMP0.3/ADC0.3
CMP1.1/ADC0.7
NC
NC
P0.4
P0.5
2 VMCU
1 GND
5V
NC
NC
P1.1
20 3V3
4
6
10
8
12
14
16
18
I2C_SDA
UART_TX
UART_RX
P1.2
P0.2
19
3
5
9
7
11
13
15
17
I2C_SCL
P0.3
P0.7
NC
NC
NC
Bottom Row
Silkscreen:
LED0
BTN
LED
JOYSTICK
VMCU 3V35V
GND
GND
3V3
GND
GNDGND
V_SW
GNDGND
VMCU
GND
VMCU
GND GNDGND GND GND GND
GND GND
VDISP VDISP
GND
GND
VMCU
GND
VMCU
GND
VMCU VMCU
GND
GND
UIF_JOYSTICK
EXP_HEADER[16..3]
BC_I2C_EXP_SCL
BC_I2C_EXP_SDA
DISP_ENABLE
BC_DISP_PWR_ENABLE
BC_DISP_SCLK
BC_DISP_SI
BC_DISP_CS
DISP_SI
DISP_CS
DISP_SCLK
BC_DISP_AVAILABLE
UIF_BUTTON0
SENSOR_I2C_SCL
SENSOR_I2C_SDA
UIF_LED0
Size
Designed
Revision
Sheet
of
Approved
Sheet Modified Date
Board Number
Board Name
Page Title
COPYRIGHT SILICON LABORATORIES INC. 2021 CONFIDENTIAL – SUBJECT TO TERMS OF USE
Friday, July 30, 2021
2 11
A3
User Interface
PEP RGU
A00
EFM8BB50 Pro Kit
BRD5208A
Size
Designed
Revision
Sheet
of
Approved
Sheet Modified Date
Board Number
Board Name
Page Title
COPYRIGHT SILICON LABORATORIES INC. 2021 CONFIDENTIAL – SUBJECT TO TERMS OF USE
Friday, July 30, 2021
2 11
A3
User Interface
PEP RGU
A00
EFM8BB50 Pro Kit
BRD5208A
Size
Designed
Revision
Sheet
of
Approved
Sheet Modified Date
Board Number
Board Name
Page Title
COPYRIGHT SILICON LABORATORIES INC. 2021 CONFIDENTIAL – SUBJECT TO TERMS OF USE
Friday, July 30, 2021
2 11
A3
User Interface
PEP RGU
A00
EFM8BB50 Pro Kit
BRD5208A
R108
4K7
P100
L-KLS1-242D-1.2-10
SCLK
10
SI
9
SCS
8
EXTCOMIN
7
DISP
6
VDDA
5
VDD
4
EXTMODE
3
VSS
2
VSSA
1
R125
10K
C104
100N
R146
0R
U100A
TS3A44159
COM1
12
COM2
16
IN1-2
14
NC1
13
NO1
11
NC2
1
NO2
15
NC4
9
NO4
7
NO3
3
NC3
5
COM3
4
COM4
8
IN3-4
6
R141
10M
R109
4K7
SW100
PTS810
1
2
3
4
M5
25x4mm
R142
100K
R100
1M
C143
100N
TP151
R104
100R
DISP1
LS013B7DH03
R150
0R
C144
100N
TP152
R145
0R
NM
C102
1N
TP150
Q100A
DMN5L06VK
2
61
C110
100N
R126
33K
C106
1N
M4
25x4mm
R113
100R
Q100B
DMN5L06VK
5
34
P101
HEADER_2X10_2.54MM_TH
1 2
4
8
6
10
3
5
9
7
12
13 14
11
15 16
17 18
19 20
LED100
Yellow
12
R124
15K
R135
3K
R140
100K
R127
60K4
SW105
1
2
34
5
6
R111
10K
TP153
U102
Si7021-A20
SCL
6
SDA
1
GND
2
VDD
5
DNC
3
DNC
4
U100B
TS3A44159
V+
10
GND
2
JS_D
JS_A
JS_COMM
JS_C
JS_CEN
JS_B
EXP_HEADER3 EXP_HEADER4
EXP_HEADER5 EXP_HEADER6
EXP_HEADER7 EXP_HEADER8
EXP_HEADER9 EXP_HEADER10
EXP_HEADER11 EXP_HEADER12
EXP_HEADER13 EXP_HEADER14
EXP_HEADER15 EXP_HEADER16