ESP32-PICO datasheet(25/64 Pages) ESPRESSIF

Nome de Peças	ESP32-PICO

Descrição Electrónicos	2.4 GHz Wi-Fi Bluetooth® Bluetooth LE SiP

PDF	64 Pages

Scroll/Zoom	100%

Fabricante Electrônico	ESPRESSIF [ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.]

Página de início	https://www.espressif.com/

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25 / 64 page

3 Boot Configurations

Figure 6: Chip Boot Flow

uart_download_dis controls boot mode behaviors:

It permanently disables Download Boot mode when uart_download_dis is set to 1 (valid only for ESP32 chip

revisions v3.0 and higher).

3.2

Internal LDO (VDD_SDIO) Voltage Control

MTDI is used to select the VDD_SDIO power supply voltage at reset:

• MTDI = 0 (by default), VDD_SDIO pin is powered directly from VDD3P3_RTC. Typically this voltage is 3.3

V. For more information, see ESP32 Series Datasheet > Section Power Scheme.

• MTDI = 1, VDD_SDIO pin is powered from internal 1.8 V LDO.

This functionality can be overridden by setting EFUSE_SDIO_FORCE to 1, in which case the EFUSE_SDIO_TIEH

determines the VDD_SDIO voltage:

• EFUSE_SDIO_TIEH = 0, VDD_SDIO connects to 1.8 V LDO.

• EFUSE_SPI_TIEH = 1, VDD_SDIO connects to VDD3P3_RTC.

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ESP32-PICO Series Datasheet v1.1

ESP32-PICO Folha de dados(PDF) 25 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.