STM32MP151A datasheet(52/253 Pages) STMICROELECTRONICS

52 / 253 page

Functional overview

STM32MP151A/D

52/253

DS12500 Rev 3

3.42

Management data input/output (MDIOS)

The devices embed a MDIO slave interface. It includes the following features:

•

32 MDIO register addresses, each of which is managed using separate input and

output data registers:

–

32 x 16-bit firmware read/write, MDIO read-only output data registers

–

32 x 16-bit firmware read-only, MDIO write-only input data registers

•

Configurable slave (port) address

•

Independently maskable interrupts/events:

–

MDIO register write

–

MDIO register read

–

MDIO protocol error

•

Able to operate in and wake up from Stop mode

3.43

Secure digital input/output MultiMediaCard interface

(SDMMC1, SDMMC2, SDMMC3)

Three secure digital input/output MultiMediaCard interfaces (SDMMC) provide an interface

between the AHB bus and SD memory cards, SDIO cards and MMC devices.

The SDMMC features include the following:

•

Full compliance with MultiMediaCard System Specification Version 4.51.

Card support for three different databus modes: 1-bit (default), 4-bit and 8-bit.

•

Full compatibility with previous versions of MultiMediaCards (backward compatibility).

•

Full compliance with SD memory card specifications version 4.1.

(SDR104 SDMMC_CK speed limited to maximum allowed I/O speed, SPI mode and

UHS-II mode not supported).

•

Full compliance with SDIO card specification version 4.0.

Card support for two different databus modes: 1-bit (default) and 4-bit.

(SDR104 SDMMC_CK speed limited to maximum allowed I/O speed, SPI mode and

UHS-II mode not supported).

•

Data transfer up to 208 Mbyte/s for the 8-bit mode.

(depending maximum allowed I/O speed).

•

Data and command output enable signals to control external bidirectional drivers.

•

The SDMMC host interface embeds a dedicated DMA controller allowing high-speed

transfers between the interface and the SRAM.

•

IDMA linked list support

Each SDMMC is coupled with a delay block (DLYBSD) allowing support of an external data

frequency above 100 MHz.

3.44

Universal serial bus high-speed host (USBH)

The devices embed one USB high-speed host (up to 480 Mbit/s) with two physical ports.

USBH supports both low, full-speed (OHCI) as well as high-speed (EHCI) operations

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