I/O Restriction To Other Features; User Leds; Description; Operating Voltage - ST STM32L562E-DK User Manual

Pin
10/11/12/1
3
6.9.4

I/O restriction to other features

Caution: Due to the sharing of some I/Os of STM32L562QEI6QU by multiple peripherals, the following limitations apply in
using the SDIO features:
The microSD™ card cannot be operated simultaneously with Pmod
The microSD™ card cannot be operated simultaneously with STMod+.
6.10

User LEDs

6.10.1

Description

Two general-purpose color LEDs (LD9 and LD10) are available as light indicators. Each LED is in light-emitting
state when a low level is applied to the corresponding ports.
The green LD10 and the red LD9 user LEDs are directly connected to STM32L562QEI6QU.
6.10.2

Operating voltage

As LEDs are driven by the I/O LOW level, they are compatible with VDD_MCU 3.3 V and 1.8 V.
Caution: With this configuration, consumption is not optimized because of the I/Os at 1.8 V and LEDs VDD at 3.3 V. A
small leakage current can appear.
6.10.3

LED interface

Table 20 describes the I/O configuration for the LED interface.
I/O
PG12
PD3
6.11

Physical input devices: buttons

6.11.1 Description
The STM32L562E-DK Discovery kit provides two push buttons for physical human control.
• The USER button (B2),
• The RST reset button (B1).
6.11.2 Operating voltage
Input devices for physical human control are connected to VDD or are referenced to GND. So input devices are
compatible with VDD_MCU voltage range from 1.8 to 3.3 V.
6.11.3

Physical input I/O interface

Table 21 describes the I/O configuration for the physical user interface.
I/O
NRST
PC13
UM2617 - Rev 2
Pin names Signal name
GND GND
Table 20. HW configuration for the LED interface
PG12 is connected to the green LED LD10 and active low.
PD3 is connected to the red LED LD9 and active low.
Table 21. I/O configuration for the physical user interface
RST reset button (active LOW)
USER button (active HIGH, connected as MCU WKUP2 function) (shared with PM_WAKE-UP)
STM32 pin
- GND pin
™
.
Configuration
Configuration
UM2617
User LEDs
Function
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