SoC Capabilities

[中文]

This section lists the macro definitions of the ESP32's SoC hardware capabilities. These macros are commonly used by conditional-compilation directives (e.g., #if) in ESP-IDF to determine which hardware-dependent features are supported, thus control what portions of code are compiled.

Warning

These macro definitions are currently not considered to be part of the public API, and may be changed in a breaking manner (see ESP-IDF Versions for more details).

API Reference

Header File

components/soc/esp32/include/soc/soc_caps.h
This header file can be included with:
#include "soc/soc_caps.h"

Macros

SOC_CAPS_ECO_VER_MAX

SOC_ADC_SUPPORTED

SOC_DAC_SUPPORTED

SOC_UART_SUPPORTED

SOC_MCPWM_SUPPORTED

SOC_GPTIMER_SUPPORTED

SOC_SDMMC_HOST_SUPPORTED

SOC_BT_SUPPORTED

SOC_PCNT_SUPPORTED

SOC_PHY_SUPPORTED

SOC_WIFI_SUPPORTED

SOC_SDIO_SLAVE_SUPPORTED

SOC_TWAI_SUPPORTED

SOC_EFUSE_SUPPORTED

SOC_EMAC_SUPPORTED

SOC_ULP_SUPPORTED

SOC_CCOMP_TIMER_SUPPORTED

SOC_RTC_FAST_MEM_SUPPORTED

SOC_RTC_SLOW_MEM_SUPPORTED

SOC_RTC_MEM_SUPPORTED

SOC_I2S_SUPPORTED

SOC_RMT_SUPPORTED

SOC_SDM_SUPPORTED

SOC_GPSPI_SUPPORTED

SOC_LEDC_SUPPORTED

SOC_I2C_SUPPORTED

SOC_SUPPORT_COEXISTENCE

SOC_AES_SUPPORTED

SOC_MPI_SUPPORTED

SOC_SHA_SUPPORTED

SOC_FLASH_ENC_SUPPORTED

SOC_SECURE_BOOT_SUPPORTED

SOC_TOUCH_SENSOR_SUPPORTED

SOC_BOD_SUPPORTED

SOC_ULP_FSM_SUPPORTED

SOC_CLK_TREE_SUPPORTED

SOC_MPU_SUPPORTED

SOC_WDT_SUPPORTED

SOC_SPI_FLASH_SUPPORTED

SOC_RNG_SUPPORTED

SOC_LIGHT_SLEEP_SUPPORTED

SOC_DEEP_SLEEP_SUPPORTED

SOC_LP_PERIPH_SHARE_INTERRUPT

SOC_PM_SUPPORTED

SOC_DPORT_WORKAROUND

SOC_DPORT_WORKAROUND_DIS_INTERRUPT_LVL

SOC_XTAL_SUPPORT_26M

SOC_XTAL_SUPPORT_40M

SOC_XTAL_SUPPORT_AUTO_DETECT

SOC_ADC_RTC_CTRL_SUPPORTED: < SAR ADC Module

SOC_ADC_DIG_CTRL_SUPPORTED

SOC_ADC_DMA_SUPPORTED

SOC_ADC_DIG_SUPPORTED_UNIT(UNIT)

SOC_ADC_PERIPH_NUM

SOC_ADC_CHANNEL_NUM(PERIPH_NUM)

SOC_ADC_MAX_CHANNEL_NUM

SOC_ADC_ATTEN_NUM: Digital

SOC_ADC_DIGI_CONTROLLER_NUM

SOC_ADC_PATT_LEN_MAX

SOC_ADC_DIGI_MIN_BITWIDTH

SOC_ADC_DIGI_MAX_BITWIDTH

SOC_ADC_DIGI_RESULT_BYTES

SOC_ADC_DIGI_DATA_BYTES_PER_CONV

SOC_ADC_DIGI_MONITOR_NUM

SOC_ADC_SAMPLE_FREQ_THRES_HIGH

SOC_ADC_SAMPLE_FREQ_THRES_LOW: RTC

SOC_ADC_RTC_MIN_BITWIDTH

SOC_ADC_RTC_MAX_BITWIDTH: ADC power control is shared by PWDET

SOC_ADC_SHARED_POWER

SOC_SHARED_IDCACHE_SUPPORTED

SOC_IDCACHE_PER_CORE

SOC_CPU_CORES_NUM

SOC_CPU_INTR_NUM

SOC_CPU_HAS_FPU

SOC_HP_CPU_HAS_MULTIPLE_CORES

SOC_CPU_BREAKPOINTS_NUM

SOC_CPU_WATCHPOINTS_NUM

SOC_CPU_WATCHPOINT_MAX_REGION_SIZE

SOC_DAC_CHAN_NUM

SOC_DAC_RESOLUTION

SOC_DAC_DMA_16BIT_ALIGN

SOC_GPIO_PORT

SOC_GPIO_PIN_COUNT

SOC_GPIO_VALID_GPIO_MASK

SOC_GPIO_VALID_OUTPUT_GPIO_MASK

SOC_GPIO_IN_RANGE_MAX

SOC_GPIO_OUT_RANGE_MAX

SOC_GPIO_VALID_DIGITAL_IO_PAD_MASK

SOC_GPIO_CLOCKOUT_BY_IO_MUX

SOC_GPIO_CLOCKOUT_CHANNEL_NUM

SOC_GPIO_SUPPORT_HOLD_IO_IN_DSLP

SOC_I2C_NUM

SOC_HP_I2C_NUM

SOC_I2C_FIFO_LEN: I2C hardware FIFO depth

SOC_I2C_CMD_REG_NUM: Number of I2C command registers

SOC_I2C_SUPPORT_SLAVE

SOC_I2C_SUPPORT_APB

SOC_I2C_STOP_INDEPENDENT

SOC_I2S_NUM

SOC_I2S_HW_VERSION_1

SOC_I2S_SUPPORTS_APLL

SOC_I2S_SUPPORTS_PLL_F160M

SOC_I2S_SUPPORTS_PDM

SOC_I2S_SUPPORTS_PDM_TX

SOC_I2S_SUPPORTS_PCM2PDM

SOC_I2S_SUPPORTS_PDM_RX

SOC_I2S_SUPPORTS_PDM2PCM

SOC_I2S_PDM_MAX_TX_LINES

SOC_I2S_PDM_MAX_RX_LINES

SOC_I2S_SUPPORTS_ADC_DAC

SOC_I2S_SUPPORTS_ADC

SOC_I2S_SUPPORTS_DAC

SOC_I2S_SUPPORTS_LCD_CAMERA

SOC_I2S_MAX_DATA_WIDTH

SOC_I2S_TRANS_SIZE_ALIGN_WORD

SOC_I2S_LCD_I80_VARIANT

SOC_LCD_I80_SUPPORTED: Intel 8080 LCD is supported

SOC_LCD_I80_BUSES: Both I2S0/1 have LCD mode

SOC_LCD_I80_BUS_WIDTH: Intel 8080 bus width

SOC_LEDC_HAS_TIMER_SPECIFIC_MUX

SOC_LEDC_SUPPORT_APB_CLOCK

SOC_LEDC_SUPPORT_REF_TICK

SOC_LEDC_SUPPORT_HS_MODE

SOC_LEDC_TIMER_NUM

SOC_LEDC_CHANNEL_NUM

SOC_LEDC_TIMER_BIT_WIDTH

SOC_MCPWM_GROUPS: 2 MCPWM groups on the chip (i.e., the number of independent MCPWM peripherals)

SOC_MCPWM_TIMERS_PER_GROUP: The number of timers that each group has.

SOC_MCPWM_OPERATORS_PER_GROUP: The number of operators that each group has.

SOC_MCPWM_COMPARATORS_PER_OPERATOR: The number of comparators that each operator has.

SOC_MCPWM_GENERATORS_PER_OPERATOR: The number of generators that each operator has.

SOC_MCPWM_TRIGGERS_PER_OPERATOR: The number of triggers that each operator has.

SOC_MCPWM_GPIO_FAULTS_PER_GROUP: The number of GPIO fault signals that each group has.

SOC_MCPWM_CAPTURE_TIMERS_PER_GROUP: The number of capture timers that each group has.

SOC_MCPWM_CAPTURE_CHANNELS_PER_TIMER: The number of capture channels that each capture timer has.

SOC_MCPWM_GPIO_SYNCHROS_PER_GROUP: The number of GPIO synchros that each group has.

SOC_MMU_PERIPH_NUM

SOC_MMU_LINEAR_ADDRESS_REGION_NUM

SOC_MPU_CONFIGURABLE_REGIONS_SUPPORTED

SOC_MPU_MIN_REGION_SIZE

SOC_MPU_REGIONS_MAX_NUM

SOC_MPU_REGION_RO_SUPPORTED

SOC_MPU_REGION_WO_SUPPORTED

SOC_PCNT_GROUPS

SOC_PCNT_UNITS_PER_GROUP

SOC_PCNT_CHANNELS_PER_UNIT

SOC_PCNT_THRES_POINT_PER_UNIT

SOC_RMT_GROUPS: One RMT group

SOC_RMT_TX_CANDIDATES_PER_GROUP: Number of channels that capable of Transmit in each group

SOC_RMT_RX_CANDIDATES_PER_GROUP: Number of channels that capable of Receive in each group

SOC_RMT_CHANNELS_PER_GROUP: Total 8 channels

SOC_RMT_MEM_WORDS_PER_CHANNEL: Each channel owns 64 words memory

SOC_RMT_SUPPORT_REF_TICK: Support set REF_TICK as the RMT clock source

SOC_RMT_SUPPORT_APB: Support set APB as the RMT clock source

SOC_RMT_CHANNEL_CLK_INDEPENDENT: Can select different source clock for each channel

SOC_RTCIO_PIN_COUNT

SOC_RTCIO_INPUT_OUTPUT_SUPPORTED

SOC_RTCIO_HOLD_SUPPORTED

SOC_RTCIO_WAKE_SUPPORTED

SOC_SDM_GROUPS

SOC_SDM_CHANNELS_PER_GROUP

SOC_SDM_CLK_SUPPORT_APB

SOC_SPI_HD_BOTH_INOUT_SUPPORTED

SOC_SPI_AS_CS_SUPPORTED

SOC_SPI_PERIPH_NUM

SOC_SPI_DMA_CHAN_NUM

SOC_SPI_PERIPH_CS_NUM(i)

SOC_SPI_MAX_CS_NUM

SOC_SPI_SUPPORT_CLK_APB

SOC_SPI_MAXIMUM_BUFFER_SIZE

SOC_SPI_MAX_PRE_DIVIDER

SOC_MEMSPI_SRC_FREQ_80M_SUPPORTED

SOC_MEMSPI_SRC_FREQ_40M_SUPPORTED

SOC_MEMSPI_SRC_FREQ_26M_SUPPORTED

SOC_MEMSPI_SRC_FREQ_20M_SUPPORTED

SOC_SPI_PERIPH_SUPPORT_MULTILINE_MODE(spi_host)

SOC_TIMER_GROUPS

SOC_TIMER_GROUP_TIMERS_PER_GROUP

SOC_TIMER_GROUP_COUNTER_BIT_WIDTH

SOC_TIMER_GROUP_TOTAL_TIMERS

SOC_TIMER_GROUP_SUPPORT_APB

SOC_TOUCH_SENSOR_VERSION: Hardware version of touch sensor

SOC_TOUCH_SENSOR_NUM

SOC_TOUCH_SAMPLE_CFG_NUM: The sample configuration number in total, each sampler can be used to sample on one frequency

SOC_TWAI_CONTROLLER_NUM

SOC_TWAI_BRP_MIN

SOC_TWAI_BRP_MAX

SOC_TWAI_CLK_SUPPORT_APB

SOC_TWAI_SUPPORT_MULTI_ADDRESS_LAYOUT

SOC_UART_NUM

SOC_UART_HP_NUM

SOC_UART_SUPPORT_APB_CLK: Support APB as the clock source

SOC_UART_SUPPORT_REF_TICK: Support REF_TICK as the clock source

SOC_UART_FIFO_LEN: The UART hardware FIFO length

SOC_UART_BITRATE_MAX: Max bit rate supported by UART

SOC_SPIRAM_SUPPORTED

SOC_SPI_MEM_SUPPORT_CONFIG_GPIO_BY_EFUSE

SOC_SHA_SUPPORT_PARALLEL_ENG

SOC_SHA_ENDIANNESS_BE

SOC_SHA_SUPPORT_SHA1

SOC_SHA_SUPPORT_SHA256

SOC_SHA_SUPPORT_SHA384

SOC_SHA_SUPPORT_SHA512

SOC_MPI_MEM_BLOCKS_NUM

SOC_MPI_OPERATIONS_NUM

SOC_RSA_MAX_BIT_LEN

SOC_AES_SUPPORT_AES_128

SOC_AES_SUPPORT_AES_192

SOC_AES_SUPPORT_AES_256

SOC_SECURE_BOOT_V1

SOC_EFUSE_SECURE_BOOT_KEY_DIGESTS

SOC_FLASH_ENCRYPTED_XTS_AES_BLOCK_MAX

SOC_PHY_DIG_REGS_MEM_SIZE

SOC_PM_SUPPORT_EXT0_WAKEUP

SOC_PM_SUPPORT_EXT1_WAKEUP

SOC_PM_SUPPORT_EXT_WAKEUP: Compatible to the old version of IDF

SOC_PM_SUPPORT_TOUCH_SENSOR_WAKEUP: Supports waking up from touch pad trigger

SOC_PM_SUPPORT_RTC_PERIPH_PD

SOC_PM_SUPPORT_RTC_FAST_MEM_PD

SOC_PM_SUPPORT_RTC_SLOW_MEM_PD

SOC_PM_SUPPORT_RC_FAST_PD

SOC_PM_SUPPORT_VDDSDIO_PD

SOC_PM_SUPPORT_MODEM_PD: Modem here includes wifi and btdm

SOC_CONFIGURABLE_VDDSDIO_SUPPORTED

SOC_PM_MODEM_PD_BY_SW

SOC_CLK_APLL_SUPPORTED

SOC_CLK_RC_FAST_D256_SUPPORTED

SOC_RTC_SLOW_CLK_SUPPORT_RC_FAST_D256

SOC_CLK_RC_FAST_SUPPORT_CALIBRATION

SOC_CLK_XTAL32K_SUPPORTED: Support to connect an external low frequency crystal

SOC_CLK_LP_FAST_SUPPORT_XTAL_D4: Support XTAL_D4 clock as the LP_FAST clock source

SOC_SDMMC_USE_IOMUX

SOC_SDMMC_NUM_SLOTS

SOC_WIFI_WAPI_SUPPORT: Support WAPI

SOC_WIFI_CSI_SUPPORT: Support CSI

SOC_WIFI_MESH_SUPPORT: Support WIFI MESH

SOC_WIFI_SUPPORT_VARIABLE_BEACON_WINDOW: Support delta early time for rf phy on/off

SOC_WIFI_NAN_SUPPORT: Support WIFI Aware (NAN)

SOC_BLE_SUPPORTED: Support Bluetooth Low Energy hardware

SOC_BLE_MESH_SUPPORTED: Support BLE MESH

SOC_BT_CLASSIC_SUPPORTED: Support Bluetooth Classic hardware

SOC_BLE_DEVICE_PRIVACY_SUPPORTED: Support BLE device privacy mode

SOC_BLUFI_SUPPORTED: Support BLUFI

SOC_BT_H2C_ENC_KEY_CTRL_ENH_VSC_SUPPORTED: Support Bluetooth Classic encryption key size configuration through vendor-specific HCI command

SOC_ULP_HAS_ADC

SOC_PHY_COMBO_MODULE: Support Wi-Fi, BT and BLE

SOC_EMAC_RMII_CLK_OUT_INTERNAL_LOOPBACK: REF RMII CLK output is looped back internally

Was this page helpful?

Thank you! We received your feedback.
If you have any comments, fill in Espressif Documentation Feedback Form.

We value your feedback.
Let us know how we can improve this page by filling in Espressif Documentation Feedback Form.