STM32WBA62CGF6 datasheet(47/185 Pages) STMICROELECTRONICS

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DS14736 Rev 1

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STM32WBA6xxx

Functional overview

power control, and generates an interrupt request to the CPU NVIC and events to the CPU

event input.

The EXTI wake-up requests allow the system to be woken up from Stop modes.

The interrupt request and event request generation can also be used in Run and Sleep

modes. The EXTI also includes the peripheral interconnect EXTI multiplexer I/O port

selection.

The EXTI main features are the following:

•

All event inputs allowed to wake up the system

•

Configurable events (signals from I/Os or peripherals able to generate a pulse)

–

Selectable active trigger edge

–

Interrupt pending status register bit independent for the rising and falling edge

–

Individual interrupt and event generation mask, used for conditioning the CPU

wake-up, interrupt and event generation

–

Software trigger possibility

•

TrustZone secure events

–

The access to control and configuration bits of secure input events can be made

secure

•

EXTI I/O port selection for peripheral interconnect use.

3.19

Cyclic redundancy check calculation unit (CRC)

The CRC is used to get a CRC code using a configurable generator with polynomial value

and size.

Among other applications, the CRC-based techniques are used to verify data transmission

or storage integrity. In the scope of the EN/IEC 60335-1 standard, they offer a mean to verify

the flash memory integrity.

The CRC calculation unit helps to compute a signature of the software during runtime, that

can be ulteriorly compared with a reference signature generated at link-time and that can be

stored at a given memory location.

3.20

Analog-to-digital converter (ADC4)

The devices embed one 12-bit successive approximation analog-to-digital converter.

Table 13. ADC features

ADC modes/features(1)

ADC4

Resolution

12 bits

Maximum sampling speed for 12-bit resolution

2.5 Msps

Hardware offset calibration

Hardware linearity calibration

Single-ended inputs

Differential inputs

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