STM32U535NET6QTR datasheet(82/278 Pages) STMICROELECTRONICS

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Functional overview

STM32U535xx

82/278

DS14217 Rev 1

The MultiMediaCard system specifications are available through the MultiMediaCard

association website at www.mmca.org, published by the MMCA technical committee.

SD memory card and SD I/O card system specifications are available through the SD card

Association website at www.sdcard.org.

The SDMMC features include the following:

•

Compliance with Embedded MultiMediaCard System Specification Version 5.1

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

(HS200 SDMMC_CK speed limited to maximum allowed I/O speed) (HS400 is not

supported).

•

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

•

Full compliance with SD memory card specifications version 6.0

(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

•

IDMA linked list support

The MultiMediaCard/SD bus connects cards to the host.

The current version of the SDMMC supports only one SD/SDIO/e•MMC card at any one

time and a stack of e•MMC.

3.43

Controller area network (FDCAN)

The controller area network (CAN) subsystem consists of one CAN module, a shared

message RAM memory and a configuration block.

The modules (FDCAN) are compliant with ISO 11898-1: 2015 (CAN protocol specification

version 2.0 part A, B) and CAN FD protocol specification version 1.0.

A 0.8-Kbyte message RAM implements filters, receives FIFOs, transmits event FIFOs and

transmits FIFOs.

The FDCAN main features are:

Table 24. SDMMC features

SDMMC modes/features(1)

1. X = supported.

SDMMC1

Variable delay (SDR104, HS200)

SDMMC_CKIN

SDMMC_CDIR, SDMMC_D0DIR

SDMMC_D123DIR

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