STM32U5A5QJI datasheet(77/382 Pages) STMICROELECTRONICS

77 / 382 page

DS13543 Rev 1

77/382

STM32U5Axxx

Functional overview

•

Support for end of transmission packet (EoTp)

•

Fault recovery schemes

•

Configurable selection of system interfaces:

–AMBA® APB for control and optional support for generic and DCS commands

–

Video mode interface through LTDC

–

Adapted command mode interface through LTDC

–

Independently programmable virtual channel ID in video mode, adapted command

mode and APB slave

•

Video mode interfaces features:

–

LTDC interface color coding mappings into 24-bit interface:

- 16-bit RGB, configurations 1, 2, and 3

- 18-bit RGB, configurations 1 and 2

- 24-bit RGB

–

Programmable polarity of all LTDC interface signals

–

Extended resolutions beyond the DPI standard maximum resolution of

800x480 pixels

–

Maximum resolution is limited by available DSI physical link bandwidth:

- Number of lanes: 2

- Maximum speed per lane: 500 Mbit/s

•

Adapted interface features:

–

Support for sending large amounts of data through the memory_write_start (WMS)

and memory_write_continue (WMC) DCS commands

–

LTDC interface color coding mappings into 24-bit interface:

- 16-bit RGB, configurations 1, 2, and 3

- 18-bit RGB, configurations 1 and 2

- 24-bit RGB

•

Video mode pattern generator:

–

Vertical and horizontal color bar generation without LTDC stimuli

–

BER pattern without LTDC stimuli

3.41

Touch sensing controller (TSC)

The TSC provides a simple solution to add capacitive sensing functionality to any

application. A capacitive sensing technology is able to detect finger presence near

an electrode that is protected from direct touch by a dielectric (such as glass or plastic). The

capacitive variation introduced by the finger (or any conductive object) is measured using

a proven implementation based on a surface charge transfer acquisition principle.

The TSC is fully supported by the STMTouch touch sensing firmware library that is free to

use and allows touch sensing functionality to be implemented reliably in the end application.

The TSC main features are the following:

•

Proven and robust surface charge transfer acquisition principle

•

Supports up to 22 capacitive sensing channels

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