I/O Restriction To Other Features; Table 13. Audio Jack Connector (Cn13) Pinout; Table 14. I/O Configuration For The Audio Dfsdm Interface - ST STM32L562E-DK User Manual

Table 13 describes the I/O configuration for the audio DFSDM interface.
Function
GND
-
DFSDM DATA3
-
-
-
-
-
-
3V3
Table 14 describes the I/O configuration for the audio DFSDM interface.
JP1 jumper
OFF
OFF
ON
1. The default configuration is shown in bold.
6.7.7

I/O restriction to other features

Caution: Due to the sharing of some I/Os of STM32L562QEI6Q by multiple peripherals, and because STM32L562QEI6Q
only supports one DFSDM interface, the following limitations apply in using the audio DFSDM features:
The onboard MEMS (U16), the MEMS module on CN2, and the STMod+ DFSDM interface cannot be operated
simultaneously.
UM2617 - Rev 7
Table 13. Audio jack connector (CN13) pinout
STM32
Signal name
pin
- GND
- -
PC7 DFSDM_DATIN3
- -
- -
- -
- -
- -
- -
- 3V3
Table 14. I/O configuration for the audio DFSDM interface
MEMS module STMod+ shield
on CN2 on CN3
NOT NOT
CONNECTED CONNECTED
NOT
CONNECTED
CONNECTED
NOT
CONNECTED
CONNECTED
Pin Pin Signal name
1 2 3V3
3 4 DFSDM_CKOUT_EXT
5 6 DFSDM_DATIN1_EXT
7 8 -
9 10 DETECTn
1 12 MEMS_LED
13 14 -
15 16 -
17 18 -
19 20 GND
Configuration
The U2 switch connects the DFSDM interface directly to the U16
onboard MEMS (signal DETECTn low).
The U2 switch disconnects the DFSDM of the U16 onboard MEMS,
and connects the DFSDM to the CN2 connector (signal DETECTn
switched high by the module on CN2 pin10).
The U2 switch disconnects the DFSDM of the U16 onboard MEMS,
and connects the DFSDM to the CN2 connector (signal DETECTn
switched high by the jumper JP1).
UM2617
Audio
STM32
Function
pin
- 3V3
PG7 DFSDM CLK
PB12 DFSDM DATA1
- -
Module
-
detection
PH1 Module LED
- -
- -
- -
- GND
(1)
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