ESP32-P4 datasheet(46/93 Pages) ESPRESSIF

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4 Functional Description

Feature List

HP GPIO matrix has the following features:

• A full-switching matrix between HP peripheral input/output signals and the GPIO pins

• 222 HP peripheral input signals sourced from the input of any GPIO pins

• 232 HP peripheral output signals routed to the output of any GPIO pins

• Signal synchronization for HP peripheral inputs based on HP IO MUX operating clock

• GPIO Filter hardware for input signal filtering

• Glitch Filter hardware for second-time filtering on input signal

• Sigma delta modulated (SDM) output

• GPIO simple input and output

• HP GPIO Wakeup

HP IO MUX has the following features:

• Control of 55 GPIOs (GPIO0–GPIO54) for HP peripherals.

• A configuration register provided for each GPIO pin, to control the pin’s input/output, pull-up/pull-down,

drive strength, and function selection.

• Better high-frequency digital performance achieved by routing some digital signals (SPI, EMAC) directly

from HP IO MUX to peripherals.

LP GPIO matrix has the following features:

• A full-switching matrix between the LP peripheral input/output signals and the LP GPIO pins

• 14 LP peripheral input signals sourced from the input of any LP GPIO pins

• 14 LP peripheral output signals routed to the output of any LP GPIO pins

• GPIO Filter hardware for input signal filtering

• GPIO simple input and output

• LP GPIO Wakeup

LP IO MUX has the following feature:

• Control of 16 LP GPIO pins (GPIO0–GPIO15) for LP peripherals.

• A configuration register provided for each LP GPIO pin, to control the pin’s input/output,

pull-up/pull-down, drive strength, function selection, and IO MUX selection.

4.1.4.2

Reset

ESP32-P4 provides four types of reset that occur at different levels, namely CPU Reset, Core Reset, System

Reset, and Chip Reset. All reset types mentioned above (except Chip Reset) preserve the data stored in

internal memory.

• Four reset types:

– CPU Reset: resets CPU core. HP CPU0, HP CPU1, and LP CPU can be reset independently:

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ESP32-P4 Series Datasheet v0.5

ESP32-P4 Datasheet(PDF) 46 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.