STM32U375CE datasheet(38/222 Pages) STMICROELECTRONICS

38 / 222 page

•

Single 32-bit, write-only, input register associated to an internal input FIFO, corresponding to a 64-byte

block size (16 x 32 bits)

•

AHB slave peripheral, accessible by 32-bit words only (else an AHB error is generated)

•

8 x 32-bit words (H0 to H7) for output messages

•

Automatic data flow control with support of direct memory access (DMA) using one channel. Single or fixed

burst of 4 supported.

•

Interruptible message digest computation, on a per-32-bit word basis

–

Reloadable digest registers

–

Hashing computation suspend/resume mechanism, including DMA

3.29

Public key accelerator (PKA)

The PKA (public key accelerator) can verify ECDSA signatures, with all needed computation performed within the

accelerator. Application CPU is only needed to manage the inputs and the outputs of the operation.

The PKA main features are:

•

ECDSA signature verification

•

Capability to handle operands up to 640 bits

•

AMBA® AHB slave peripheral, accessible through 32-bit word single accesses only (otherwise an AHB bus

error is generated, and write accesses are ignored)

3.30

Timers and watchdogs

The devices include an advanced control timer, up to six general-purpose timers, two basic timers, up to four low-

power timers, two watchdog timers and two SysTick timers.

The table below compares the features of the advanced control, general-purpose and basic timers.

Table 12. Timer feature comparison

Timer type

Timer

Counter

resolution

Counter

type

Prescaler factor

DMA request

generation

Capture/

compare

channels

Complementary

outputs

Advanced

control

TIM1

16 bits

Up, down,

Up/down

Any integer between 1

and 65536

Yes

General-

purpose

TIM2, TIM3,

TIM4

32 bits

Up, down,

Up/down

Any integer between 1

and 65536

Yes

General-

purpose

TIM15

16 bits

Any integer between 1

and 65536

Yes

General-

purpose

TIM16,

TIM17

16 bits

Any integer between 1

and 65536

Yes

Basic

TIM6, TIM7

16 bits

Any integer between 1

and 65536

Yes

Low-power

LPTIM1,

LPTIM2,

LPTIM3,

LPTIM4

16 bits

1, 2, 4, 8, 16, 32, 64, or

128

Yes

2(1)

1. LPTIM4 has no capture/compare channel.

3.30.1

Advanced-control timers (TIM1)

The advanced-control timers can each be seen as a three-phase PWM multiplexed on six channels. They have

complementary PWM outputs with programmable inserted deadtimes. They can also be seen as complete

general-purpose timers.

The four independent channels can be used for:

•

Input capture

•

Output compare

•

PWM generation (edge or center-aligned modes) with full modulation capability (0 - 100%)

STM32U375xx

Functional overview

DS14861 - Rev 2

page 38/222

STM32U375CE Datasheet(PDF) 38 Page - STMicroelectronics

STM32U375CE Datasheet(HTML) 38 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL