STM32U375CE datasheet(212/222 Pages) STMICROELECTRONICS

212 / 222 page

Contents

Introduction .......................................................................4

Description ........................................................................5

Functional overview ...............................................................9

3.1

Arm®Cortex®-M33 core with TrustZone® and FPU................................... 9

3.2

Instruction cache (ICACHE)...................................................... 9

3.3

Memory protection unit ......................................................... 10

3.4

Embedded flash memory ....................................................... 10

3.4.1

TrustZone® security ..................................................... 12

3.4.2

Privilege protection ...................................................... 12

3.5

Embedded SRAM ............................................................. 12

3.5.1

TrustZone® security ..................................................... 12

3.5.2

Privilege protection ...................................................... 12

3.6

Boot modes .................................................................. 12

3.7

Global TrustZone® controller (GTZC) ............................................. 14

3.7.1

TrustZone® security architecture ............................................ 14

3.7.2

TrustZone®peripheral classification.......................................... 15

3.7.3

Default TrustZone® security state ........................................... 15

3.8

Power supply management ..................................................... 16

3.8.1

Power supply schemes ................................................... 16

3.8.2

Power supply supervisor .................................................. 20

3.8.3

Reset mode ........................................................... 20

3.8.4

VBAT operation......................................................... 21

3.8.5

PWR TrustZone® security ................................................. 21

3.9

Low-power modes............................................................. 21

3.9.1

Autonomous peripherals .................................................. 23

3.10

Peripheral interconnect matrix ................................................... 26

3.11

Reset and clock controller (RCC) ................................................ 26

3.11.1

RCC TrustZone®security.................................................. 28

3.12

Clock recovery system (CRS) ................................................... 28

3.13

General-purpose inputs/outputs (GPIO)........................................... 28

3.13.1

GPIOs TrustZone® security................................................ 28

3.14

Multi-AHB bus matrix .......................................................... 28

3.15

General purpose direct memory access controller (GPDMA) ......................... 29

3.16

Interrupts and events .......................................................... 30

STM32U375xx

Contents

DS14861 - Rev 2

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