Reset Source; Audio; Description; Table 9. I/O Configuration For The Optional Hse - ST STM32L562E-DK User Manual

6.5.2 HSE clock reference
The HSE clock references on the STM32L562QEI6QU microcontroller can be done by:
• Internal RC for MSI clock reference (Default configuration)
• STLK_MCO from STLINK-V3E: 8MHz optional clock not connected by default
• 16 MHz crystal X1, for HSE clock generator. This one is optional and not mounted by default.
Table 9 describes the I/O configuration for the optional HSE.
I/O
PH0
PH1
1. The default configuration is shown in bold.
6.6

Reset source

The reset signal of the STM32L562E-DK Discovery kit is active low. Internal PU force the RST signal to a high
level.
Sources of reset are:
• B1 RESET button (black button)
• Embedded STLINK-V3E
• CN8 JTAG/SWD STDC connector and CN9 TAG connector (reset from debug tools)
• CN18 pin 3 ARDUINO
• PD12 from energy meter part included in the STM32L562E-DK Discovery kit
6.7

Audio

6.7.1

Description

A codec CS42L51-CNZ (U1) is connected to the SAI interface of STM32L562QEI6QU which supports the TDM
feature of the SAI port. The TDM feature offers STM32L562QEI6QU the capability to stream stereo audio
channels.
UM2617 - Rev 2
Table 9. I/O configuration for the optional HSE
Resistor Setting
PH0 OSC_IN terminal is not connected to STLK_MCO
OFF MSI is used
PH0 is used as GPIO LCD_PWR-ON (R29 connected)
R28
PH0 OSC_IN is connected to STLK_MCO 8 MHz
ON MSI not used
PH0 not used as GPIO
PH0 OSC_IN terminal is not connected to HSE crystal
OFF MSI is used
PH0 is used as GPIO LCD_PWR-ON (R29 connected)
R27
PH0 OSC_IN is connected to HSE crystal 16MHz
ON MSI not used
PH0 not used as GPIO
PH1 OSC_OUT terminal is not connected to HSE crystal
OFF
MSI is used
PH1 is used as GPIO MEMS LED (R25 connected)
R26
PH1 OSC_OUT is connected to HSE crystal 16MHz
ON MSI not used
PH1 not used as GPIO
®
connector (reset from daughterboard)
Configuration
UM2617
Reset source
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