ESP32 Pin IO13 Multiplexing Options

dacre

dacre

Can you tell me what are all the multiplexed alternatives for pin IO13 (pin 16) of @ESP1?
52 days

flux

0:26

Gather.

Looking for "Pin 16 IO13 multiplexed functions alternate functions pin description" in esp32-wrover-e_esp32-wrover-ie_datasheet_en.pdf

For ESP1, pin 16 = IO13 can be multiplexed as:

Table

SignalFunction
GPIO13General-purpose I/O
ADC2_CH4ADC2 channel 4
TOUCH4Capacitive touch input 4
RTC_GPIO14RTC-domain GPIO 14
MTCKJTAG test clock
HSPIDHSPI data in
HS2_DATA3SD/SDIO host data bit 3
SD_DATA3SD card data bit 3
EMAC_RX_EREthernet MAC receive error
If you want, I can also list the boot-strapping / caution notes for ESP1 IO13, since some alternate functions can affect bring-up or debugging.
IO13 caution notes
More ESP1 pin mux
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R24
Resistance
10kΩ
AU_GND
OUTN
R25
Resistance
150kΩ
AU_GND
R26
Resistance
150kΩ
AU_GND
OUTP
C36
Capacitance
0.1uF
C37
Capacitance
0.1uF
C39
Capacitance
22pF
C31
Capacitance
1uF
C38
Capacitance
22pF
U2
Manufacturer Part Number
NS4150B
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