STM32F756VG datasheet(43/228 Pages) STMICROELECTRONICS

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STM32F756xx

Functional overview

provide confidentiality, authentication, data integrity and non repudiation when exchanging

messages with a peer.

•

These algorithms consists of:

Encryption/Decryption

–

DES/TDES (data encryption standard/triple data encryption standard): ECB

(electronic codebook) and CBC (cipher block chaining) chaining algorithms, 64-,

128- or 192-bit key

–

AES (advanced encryption standard): ECB, CBC, GCM, CCM, and CTR (counter

mode) chaining algorithms, 128, 192 or 256-bit key

Universal hash

–

SHA-1 and SHA-2 (secure hash algorithms)

–MD5

–HMAC

The cryptographic accelerator supports DMA request generation.

2.38

Random number generator (RNG)

All devices embed an RNG that delivers 32-bit random numbers generated by an integrated

analog circuit.

2.39

General-purpose input/outputs (GPIOs)

Each of the GPIO pins can be configured by software as output (push-pull or open-drain,

with or without pull-up or pull-down), as input (floating, with or without pull-up or pull-down)

or as peripheral alternate function. Most of the GPIO pins are shared with digital or analog

alternate functions. All GPIOs are high-current-capable and have speed selection to better

manage internal noise, power consumption and electromagnetic emission.

The I/O configuration can be locked if needed by following a specific sequence in order to

avoid spurious writing to the I/Os registers.

Fast I/O handling allowing maximum I/O toggling up to 108 MHz.

2.40

Analog-to-digital converters (ADCs)

Three 12-bit analog-to-digital converters are embedded and each ADC shares up to 16

external channels, performing conversions in the single-shot or scan mode. In scan mode,

automatic conversion is performed on a selected group of analog inputs.

Additional logic functions embedded in the ADC interface allow:

•

Simultaneous sample and hold

•

Interleaved sample and hold

The ADC can be served by the DMA controller. An analog watchdog feature allows very

precise monitoring of the converted voltage of one, some or all selected channels. An

interrupt is generated when the converted voltage is outside the programmed thresholds.

To synchronize A/D conversion and timers, the ADCs could be triggered by any of TIM1,

TIM2, TIM3, TIM4, TIM5, or TIM8 timer.

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