Microsd ™ Card; Description; Operating Voltage; Microsd ™ Card Interface - ST STM32MP135F-DK User Manual

Table 8 describes the pinout of USB Type-C
Function STM32 pin
GND
TX1+
TX1-
VBUS
CC1
D+ USB_DP2
D- USB_DM2
SBU1
VBUS
RX2-
RX2+
GND
7.10 ™
microSD
7.10.1

Description

The CN3 slot for the microSD
compliant with SD Memory Card Specification Version 3.01: High Speed.
7.10.2

Operating voltage

™
The microSD
card types are supported (including SDHC and SDXC), but only Default and High-Speed modes (3V3) are
supported on STM32MP135F-DK. UHS-I modes (1.8 V) are not supported on this Discovery kit.
7.10.3 ™
microSD card interface
™
The microSD
and one card detection signal (CARD_DETECT).
The SDMMC1 is a bootable interface.
Table 9 describes the I/O configuration for the SDIO interface.
I/O
PH4
PC8
PC9
PC10
PC11
PC12
PD2
UM2993 - Rev 2
®
Table 8. CN7 USB Type-C
Signal name
- GND
- -
- -
- -
- -
USB_DP2
USB_DM2
- -
- -
- -
- -
- GND
card
™
card is routed to the STM32MP135F SDIO port (SDMMC1). This interface is
card interface is only compatible with the 3.3 V voltage range: from 2.7 V to 3.6 V. All microSD
card interface is used in the four data lines D[0:3] with one clock (CLK), one command line (CMD),
Table 9. I/O configuration for the SDIO interface
PH4 is connected to µSD_DETECT
PC8 is connected to SDMMC1_D0
PC9 is connected to SDMMC1_D1
PC10 is connected to SDMMC1_D2
PC11 is connected to SDMMC1_D3
PC12 is connected to SDMMC1_CLK
PD2 is connected to SDMMC1_CMD
connector CN7.
®
connector pinout
Pin Pin
Pin Pin
name name
GND A1 B12 GND
TX1+ A2 B11 RX1+
TX1- A3 B10 RX1-
VBUS A4 B9 VBUS
CC1 A5 B8 SBU2
D+ A6 B7 D-
D- A7 B6 D+
SBU1 A8 B5 CC2
VBUS A9 B4 VBUS
RX2- A10 B3 TX2-
RX2+ A11 B2 TX2+
GND A12 B1 GND
Configuration
UM2993
microSD™ card
Signal name STM32 pin
GND -
- -
- -
- -
- -
USB_DM2 USB_DM2
USB_DP2 USB_DP2
- -
- -
- -
- -
GND -
Function
GND
RX1+
RX1-
VBUS
SBU2
D-
D+
CC2
VBUS
TX2-
TX2+
GND
™
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