STM32L4R9AI datasheet(51/306 Pages) STMICROELECTRONICS

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STM32L4R5xx, STM32L4R7xx and STM32L4R9xx

Functional overview

•

Break signal generation on analog watchdog event or on short circuit detector event

•

Extremes detector:

–

Storage of minimum and maximum values of final conversion data

–

Refreshed by software

•

DMA capability to read the final conversion data

•

Interrupts: end of conversion, overrun, analog watchdog, short circuit, input serial

channel clock absence

•

“Regular” or “injected” conversions:

–

“Regular” conversions can be requested at any time or even in continuous mode

without having any impact on the timing of “injected” conversions

–

“Injected” conversions for precise timing and with high conversion priority

3.28

Random number generator (RNG)

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

analog circuit.

3.29

Digital camera interface (DCMI)

The STM32L4Rxxx devices embed a camera interface that can connect with any camera

modules and CMOS sensors through an 8-bit to 14-bit parallel interface in order to receive

video data.

The camera interface can sustain a data transfer rate up to 54 Mbytes/s at 54 MHz. It

features:

•

Programmable polarity for the input pixel clock and synchronization signals

•

Parallel data communication of 8-, 10-, 12- or 14-bit

•

Supports 8-bit progressive video monochrome or raw bayer format, YCbCr 4:2:2

progressive video, RGB 565 progressive video or compressed data (like JPEG)

•

Supports continuous mode or snapshot (a single frame) mode

•

Capability to automatically crop the image.

3.30

Timers and watchdogs

The STM32L4Rxxx devices include two advanced control timers, up to nine general-

purpose timers, two basic timers, two low-power timers, two watchdog timers and a SysTick

timer.

The Table 10 below compares the features of the advanced control, general-purpose and

basic timers.

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