Operating Voltage; Limitations And Hardware Configuration; Interface; Table 27. Hardware Configuration For Dfsdm Microphones Module - ST STM32H7B3I-EVAL User Manual

7.2.2

Operating voltage

DFSDM microphone module supports only 3.3 V.
Make sure to supply 3.3 V on VDDMMC (Refer to
7.2.3

Limitations and hardware configuration

Limitations with primary functions: camera (Refer to jumper configuration in
Limitations with secondary functions: USB HS and NOR Flash
Hardware modifications are listed in
Signal name
DFSDM1_2_DATIN1
DFSDM1_DATIN3
DCMI_D1
MEMS_LED
DCMI_D6
DFSDM1_DATIN5
DFSDM1_CKOUT
1. The default setting is in bold.
2. Remove to avoid stub if necessary.
3. PB8 signal is supplied by VDDMMC. Make sure to supply 3.3V on VDDMMC (Refer to
Note: 2
I C address of CS42L51-CNZ is 0x94 (AD0=0).
7.2.4

Interface

Figure 24.
Table 28.
Pin
number
1
3
DFSDM1_2_CKOUT
5
7
UM2662 - Rev 1
Table 27:
Table 27. Hardware configuration for DFSDM microphones module
Pin name
PB12
PC7
-
PB8
PB6
PB0
MEMS microphone module and motor Control module connector CN4
MEMS microphone module MB1299 and motor control module connector CN4
Description Pin connection
GND
(1)
DFSDM1_DATIN3 (1)
DFSDM1_DATIN5
Section 6.3.5 ).
Setting
JP19
JP35
R113
R120
(3)
R110
R33
JP10
Pin
number
GND 2
PB0 4
DFSDM1_2_CKOUT
PC7 6 DFSDM1_2_DATIN1
PB6 8
DFSDM1_DATIN7
UM2662
DFSDM microphones module (MB1299)
Table 27)
(1)
DFSDM
[1-2]
[2-3]
(2)
OFF
ON
(2)
OFF
OFF
OFF
Section 6.3.5
Description Pin connection
3V3_AO 3V3_AO
(1) PB0
(1) PB12
(1) PB9
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