Schematics
UM22
71
6
0/7
D
ocID030
906 Re
v 2
Figure 25. 32L4R9IDISCOVERY peripherals
6
14
Peripherals
MB1311
C
28/08/2017
Title:
Size:
Reference:
Date:
Sheet:
of
A4
Revision:
STM32L4R9I-DISCO
Project:
MICRO SD
PC11
PC10
PC12
PD2
(TF) Card
1
2
Green
LD2
+3V3
LED_GREEN
LED_ORANGE
PH4
MFX_GPIO0
The 2 LEDs are top side
VDD
JOYSTICK
MFX_GPIO3
MFX_GPIO4
MFX_GPIO1
MFX_GPIO2
VDD
PC13 - WKUP2
uSD_D0
uSD_CLK
uSD_D1
uSD_D2
uSD_D3
uSD_CMD
SD
uSD_D0
uSD_D1
uSD_D2
uSD_D3
uSD_CLK
uSD_CMD
SD
uSD_Detect
JOY_DOWN
JOY_LEFT
JOY_RIGHT
JOY_UP
JOYSTICK
JOYSTICK
uSD_Detect
Reset Button
GND
RESET
1
2
Orange
LD1
510
R5
680
R3
100
R42
micro SD is functional with 3V3 only
1
2
3
4
5
6
7
8
CN7
F206A-2*04MGF-A
R107
0
R108
0
I2C1_SDA
I2C1_SCL
VDD
PG13
PB6
EXT_RESET
SSM-104-L-DH (Samtec)
R112
0
EXT_I2C Connector
User LEDs
SB37
+5V
GND
JOY_SEL
JOY_SEL
SD_D0
SD_D1
SD_D2
SD_D3
SD_CLK
SD_CMD
uSD_Detect
JOY_SEL
SDA
SCL
I2C
EXT_I2C
I2C1_SCL
I2C1_SDA
DAT3_IN
4
RDATA_VCC
16
DAT3_EX
13
CMD_IN
5
WP/CD
1
VCC
15
CMD_EX
12
RDAT3_GND
2
DAT2_EX
14
DAT2_IN
3
CLK_IN
6
DAT0_IN
7
DAT1_IN
8
DAT1_EX
9
DAT0_EX
10
CLK_EX
11
GND
17
U13
EMIF06-MSD02N16
IO1
1
GND
3
IO2
2
U4
ESDA6V1L
1
3
2
4
5
U17
ESDALC6V1W5
PC13 - WKUP2
MFX_GPIO11
MFX_GPIO5
MFX_GPIO5
PC8
PC9
3
4
1
2
B1
TD-0341X-A00 [RESET/Black]
JOY_SEL is also the WAKE_UP function
COMMON
5
Selection
2
DOWN
3
LEFT
1
RIGHT
6
UP
4
B2
MT008-A
CL
K
5
GND
11
CMD
3
DA
T2
1
VS
S
6
VD
D
4
GND
10
DA
T1
8
DA
T0
7
CA
RD
_
D
E
T
E
C
T
9
GND
12
DA
T3
_C
D
2
NC
13
CN6
MR01A-01211
