Figure 11.
microSD
™
card connector CN15
describes pinout of the microSD
™
connector CN15.
Table 12.
CN15 microSD
™
connector pinout
Pin
Pin name
Signal name
STM32 pin
Function
1
DAT2
SDMMC1_D2
PC10
SDIO.D2
2
DAT3_CD
SDMMC1_D3
PC11
SDIO.D3
3
CMD
SDMMC1_CMD
PD2
SDIO.CMD
4
3V3
3V3
-
VDD_SDCARD
5
CLK
SDMMC1_CLK
PC12
SDIO.CLK
6
VSS
GND
-
GND
7
DAT0
SDMMC1_D0
PC8
SDIO.D0
8
DAT1
SDMMC1_D1
PC9
SDIO.D1
9
GND
GND
-
GND
10
CARD_DETECT
uSD_DETECT
PB7
SDCARD_DETECT active LOW
7.10
LEDs
7.10.1
Description
The LD2 LED turns green when the power cable is inserted in connector CN6.
Two general-purpose color LEDs (LD7 and LD8) are available as light indicators:
•
The LD7 orange LED is used as STM32Cube examples verdict LED.
•
The LD8 blue LED is used as Linux
®
Heartbeat LED, which is blinking as long as Linux
®
is alive on the
Cortex
®
-A.
The two user LEDs, the green LD5 and orange LD6 LEDs, are directly connected to the STM32MP157x.
UM2534
LEDs
UM2534
-
Rev 1
page 18/47