![ST STM32MP157F-EV1 Скачать руководство пользователя страница 22](http://html1.mh-extra.com/html/st/stm32mp157f-ev1/stm32mp157f-ev1_user-manual_1356094022.webp)
6.14
microSD card
The MB1263/CN9 slot for microSD card is routed to the STM32MP157FAA1 SDMMC1 port. This SD card
interface is compliant with SD Memory Card Specification Version 3.01, UHS-I, all operation modes up to SDR104
and DDR50. The SD card interface is compatible with 1.8 V or 2.9 V signal levels.
6.14.1
SD card interface
The SD card interface, SDMMC1, is 4-bit wide with level shifter support, in order to connect to an SD 3.0-
compliant bidirectional dual voltage level translator, interfacing with the memory card inserted in the SDCARD
connector.
describes the I/O for the SDMMC1 interface.
Table 18.
I/O configuration for the SDIO interface
I/O
PC12
SDMMC1_CK
PE4
SDMMC1_CKIN
PD2
SDMMC1_CMD
PB9
SDMMC1_CDIR
PC8
SDMMC1_D0
PC9
SDMMC1_D1
PC10
SDMMC1_D2
PC11
SDMMC1_D3
PF2
SDMMC1_D0DIR
PC7
SDMMC1_D123DIR
PF14
uSD_LDO_SEL
1. Minimum set of signals required by the boot ROM during SD card boot in bold
shows the SDCARD connector pinout MB1263/CN9.
Figure 11.
SDCARD connector pinout MB1263/CN9
describes the SDCARD connector pinout MB1263/CN9.
UM2648
microSD card
UM2648
-
Rev 1
page 22/61