Espressif Systems ESP32 Technical Reference Manual page 43

4.12 Register Summary
Name
GPIO_PIN39_REG
GPIO_FUNC0_IN_SEL_CFG_REG
GPIO_FUNC1_IN_SEL_CFG_REG
...
GPIO_FUNC254_IN_SEL_CFG_REG
GPIO_FUNC255_IN_SEL_CFG_REG
GPIO_FUNC0_OUT_SEL_CFG_REG
GPIO_FUNC1_OUT_SEL_CFG_REG
...
GPIO_FUNC38_OUT_SEL_CFG_REG
GPIO_FUNC39_OUT_SEL_CFG_REG
Name
IO_MUX_GPIO36_REG
IO_MUX_GPIO37_REG
IO_MUX_GPIO38_REG
IO_MUX_GPIO39_REG
IO_MUX_GPIO34_REG
IO_MUX_GPIO35_REG
IO_MUX_GPIO32_REG
IO_MUX_GPIO33_REG
IO_MUX_GPIO25_REG
IO_MUX_GPIO26_REG
IO_MUX_GPIO27_REG
IO_MUX_MTMS_REG
IO_MUX_MTDI_REG
IO_MUX_MTCK_REG
IO_MUX_MTDO_REG
IO_MUX_GPIO2_REG
IO_MUX_GPIO0_REG
IO_MUX_GPIO4_REG
IO_MUX_GPIO16_REG
IO_MUX_GPIO17_REG
IO_MUX_SD_DATA2_REG
IO_MUX_SD_DATA3_REG
IO_MUX_SD_CMD_REG
IO_MUX_SD_CLK_REG
IO_MUX_SD_DATA0_REG
IO_MUX_SD_DATA1_REG
IO_MUX_GPIO5_REG
IO_MUX_GPIO18_REG
IO_MUX_GPIO19_REG
Espressif Systems
Description
Configuration for GPIO pin 39_REG
Peripheral function 0 input selection register_REG
Peripheral function 1 input selection register_REG
...
Peripheral function 254 input selection regis-
ter_REG
Peripheral function 255 input selection regis-
ter_REG
Peripheral output selection for GPIO 0_REG
Peripheral output selection for GPIO 1_REG
...
Peripheral output selection for GPIO 38_REG
Peripheral output selection for GPIO 39_REG
Description
Configuration register for pad GPIO36
Configuration register for pad GPIO37
Configuration register for pad GPIO38
Configuration register for pad GPIO39
Configuration register for pad GPIO34
Configuration register for pad GPIO35
Configuration register for pad GPIO32
Configuration register for pad GPIO33
Configuration register for pad GPIO25
Configuration register for pad GPIO26
Configuration register for pad GPIO27
Configuration register for pad MTMS
Configuration register for pad MTDI
Configuration register for pad MTCK
Configuration register for pad MTDO
Configuration register for pad GPIO2
Configuration register for pad GPIO0
Configuration register for pad GPIO4
Configuration register for pad GPIO16
Configuration register for pad GPIO17
Configuration register for pad SD_DATA2
Configuration register for pad SD_DATA3
Configuration register for pad SD_CMD
Configuration register for pad SD_CLK
Configuration register for pad SD_DATA0
Configuration register for pad SD_DATA1
Configuration register for pad GPIO5
Configuration register for pad GPIO18
Configuration register for pad GPIO19
42
4 IO_MUX AND GPIO MATRIX
Address
0x3FF44124
0x3FF44130
0x3FF44134
0x3FF44528
0x3FF4452C
0x3FF44530
0x3FF44534
0x3FF445C8
0x3FF445CC
Address
0x3FF53004
0x3FF53008
0x3FF5300C
0x3FF53010
0x3FF53014
0x3FF53018
0x3FF5301C
0x3FF53020
0x3FF53024
0x3FF53028
0x3FF5302C
0x3FF53030
0x3FF53034
0x3FF53038
0x3FF5303C
0x3FF53040
0x3FF53044
0x3FF53048
0x3FF5304C
0x3FF53050
0x3FF53054
0x3FF53058
0x3FF5305C
0x3FF53060
0x3FF53064
0x3FF53068
0x3FF5306C
0x3FF53070
0x3FF53074
ESP32 Technical Reference Manual V1.0
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W