STM32H742XG datasheet(40/357 Pages) STMICROELECTRONICS

40 / 357 page

Functional overview

STM32H742xI/G STM32H743xI/G

40/357

DS12110 Rev 7

•

short circuit detector to detect saturated analog input values (bottom and top range):

–

up to 8-bit counter to detect 1..256 consecutive 0’s or 1’s on serial data stream

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monitoring continuously each input serial channel

•

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

•

extremes detector:

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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

3.24

Digital camera interface (DCMI)

The devices embed a camera interface that can connect with camera modules and CMOS

sensors through an 8-bit to 14-bit parallel interface, to receive video data. The camera

interface can achieve a data transfer rate up to 140 Mbyte/s using a 80 MHz pixel clock. It

features:

•

Programmable polarity for the input pixel clock and synchronization signals

•

Parallel data communication can be 8-, 10-, 12- or 14-bit

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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)

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Supports Continuous mode or Snapshot (a single frame) mode

•

Capability to automatically crop the image

3.25

LCD-TFT controller

The LCD-TFT display controller (only available on STM32H743xI/G) provides a 24-bit

parallel digital RGB (Red, Green, Blue) and delivers all signals to interface directly to a

Table 4. DFSDM implementation

DFSDM features

DFSDM1

Number of filters

Number of input

transceivers/channels

Internal ADC parallel input

Number of external triggers

Regular channel information in

identification register

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