DocID030906 Rev 2 35/78
UM2271 Connectors
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Figure 13. microSD connector CN6 (top view)
Note: Limitation: the microSD is not compatible with JP7 setting at +1V8.
11.6 STMod+ connector CN1
The standard 20-pin STMod+ connector is available on 32L4R9IDISCOVERY board to
increase compatibility with external boards and modules from the Ecosystem of
microcontrollers. By default, it is designed to support an ST dedicated Fanout board which
allows connecting different modules or board extensions from different manufacturers.
Fanout board also embeds a 3V3 regulator and I2C level shifters. Schematics of Fanout
board is available in
Figure 35.: Fanout board (MB1280). For more detailed information,
Table 18. microSD connector CN6
Pin
number
Description
Pin
number
Description
1 SDMMC1_D2 (PC10) 6 GND
2 SDMMC1_D3 (PC11) 7 SDMMC1_D0 (PC8)
3 SDMMC1_CMD (PD2) 8 SDMMC1_D1 (PC9)
4 VDD (+3V3) 9 µSD_DETECT (MFX_GPIO5)
5 SDMMC1_CLK (PC12) 10-11-12 GND (casing)
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