STM32H7 datasheet(41/357 Pages) STMICROELECTRONICS

41 / 357 page

DS12110 Rev 10

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STM32H742xI/G STM32H743xI/G

Functional overview

broad range of LCD and TFT panels up to XGA (1024x768) resolution with the following

features:

•

2 display layers with dedicated FIFO (64x64-bit)

•

Color Look-Up table (CLUT) up to 256 colors (256x24-bit) per layer

•

Up to 8 input color formats selectable per layer

•

Flexible blending between two layers using alpha value (per pixel or constant)

•

Flexible programmable parameters for each layer

•

Color keying (transparency color)

•

Up to 4 programmable interrupt events

•

AXI master interface with burst of 16 words

3.26

JPEG Codec (JPEG)

The JPEG Codec (only available on STM32H743xI/G) can encode and decode a JPEG

stream as defined in the ISO/IEC 10918-1 specification. It provides an fast and simple

hardware compressor and decompressor of JPEG images with full management of JPEG

headers.

The JPEG codec main features are as follows:

•

8-bit/channel pixel depths

•

Single clock per pixel encoding and decoding

•

Support for JPEG header generation and parsing

•

Up to four programmable quantization tables

•

Fully programmable Huffman tables (two AC and two DC)

•

Fully programmable minimum coded unit (MCU)

•

Encode/decode support (non simultaneous)

•

Single clock Huffman coding and decoding

•

Two-channel interface: Pixel/Compress In, Pixel/Compressed Out

•

Support for single greyscale component

•

Ability to enable/disable header processing

•

Fully synchronous design

•

Configuration for High-speed decode mode

3.27

True random number generator (RNG)

The RNG is a true random number generator that provides full entropy outputs to the

application as 32-bit samples. It is composed of a live entropy source (analog) and an

internal conditioning component.

3.28

Timers and watchdogs

The devices include one high-resolution timer, two advanced-control timers, ten general-

purpose timers, two basic timers, five low-power timers, two watchdogs and a SysTick timer.

All timer counters can be frozen in Debug mode.

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