Espressif Systems ESP32 Technical Reference Manual page 37

4.9 Peripheral Signal List
Signal Input Signal
91
92
93
94
95 I2CEXT1_SCL_in
96 I2CEXT1_SDA_in
97 host_card_detect_n_1
98 host_card_detect_n_2
99 host_card_write_prt_1
100 host_card_write_prt_2
101 host_card_int_n_1
102 host_card_int_n_2
103 pwm1_sync0_in
104 pwm1_sync1_in
105 pwm1_sync2_in
106 pwm1_f0_in
107 pwm1_f1_in
108 pwm1_f2_in
109 pwm0_cap0_in
110 pwm0_cap1_in
111 pwm0_cap2_in
112 pwm1_cap0_in
113 pwm1_cap1_in
114 pwm1_cap2_in
115 pwm2_flta
116 pwm2_fltb
117 pwm2_cap1_in
118 pwm2_cap2_in
119 pwm2_cap3_in
120 pwm3_flta
121 pwm3_fltb
122 pwm3_cap1_in
123 pwm3_cap2_in
124 pwm3_cap3_in
140 I2S0I_DATA_in0
141 I2S0I_DATA_in1
142 I2S0I_DATA_in2
143 I2S0I_DATA_in3
144 I2S0I_DATA_in4
145 I2S0I_DATA_in5
146 I2S0I_DATA_in6
147 I2S0I_DATA_in7
148 I2S0I_DATA_in8
149 I2S0I_DATA_in9
Espressif Systems
Output Signal
rmt_sig_out4
rmt_sig_out5
rmt_sig_out6
rmt_sig_out7
I2CEXT1_SCL_out
I2CEXT1_SDA_out
host_ccmd_od_pullup_en_n
host_rst_n_1
host_rst_n_2
gpio_sd0_out
gpio_sd1_out
gpio_sd2_out
gpio_sd3_out
gpio_sd4_out
gpio_sd5_out
gpio_sd6_out
gpio_sd7_out
pwm1_out0a
pwm1_out0b
pwm1_out1a
pwm1_out1b
pwm1_out2a
pwm1_out2b
pwm2_out1h
pwm2_out1l
pwm2_out2h
pwm2_out2l
pwm2_out3h
pwm2_out3l
pwm2_out4h
pwm2_out4l
I2S0O_DATA_out0
I2S0O_DATA_out1
I2S0O_DATA_out2
I2S0O_DATA_out3
I2S0O_DATA_out4
I2S0O_DATA_out5
I2S0O_DATA_out6
I2S0O_DATA_out7
I2S0O_DATA_out8
I2S0O_DATA_out9
36 ESP32 Technical Reference Manual V1.0
4 IO_MUX AND GPIO MATRIX
Direct I/O in IO_MUX