Espressif Systems ESP32-WROVER-E User Manual page 8

2. Pin Definitions
Pin Default
GPIO0 Pull-up
GPIO2 Pull-down
Pin Default
MTDO Pull-up
Falling-edge Sampling
Pin Default
Falling-edge Output
0
MTDO Pull-up
0
GPIO5 Pull-up
Note:
• Firmware can configure register bits to change the settings of "Voltage of Internal LDO (VDD_SDIO)" and
"Timing of SDIO Slave" after booting.
• Internal pull-up resistor (R9) for MTDI is not populated in the module, as the flash and SRAM in ESP32-
WROVER-E only support a power voltage of 3.3 V (output by VDD_SDIO)
SPI Boot
1
Don't-care
Enabling/Disabling Debugging Log Print over U0TXD During Booting
U0TXD Active
1
Timing of SDIO Slave
Falling-edge Sampling
Rising-edge Output
0
1
Booting Mode
Rising-edge Sampling
Falling-edge Output
1
0
6
Download Boot
0
0
U0TXD Silent
0
Rising-edge Sampling
Rising-edge Output
1
1