SoC Capabilities

This section lists definitions of the ESP32-C3’s SoC hardware capabilities. These definitions are commonly used in IDF to control which hardware dependent features are supported and thus compiled into the binary.

Note

These defines are currently not considered to be part of the public API, and may be changed at any time.

API Reference

Header File

components/soc/esp32c3/include/soc/soc_caps.h

Macros

SOC_ADC_SUPPORTED

SOC_DEDICATED_GPIO_SUPPORTED

SOC_UART_SUPPORTED

SOC_GDMA_SUPPORTED

SOC_GPTIMER_SUPPORTED

SOC_TWAI_SUPPORTED

SOC_BT_SUPPORTED

SOC_ASYNC_MEMCPY_SUPPORTED

SOC_USB_SERIAL_JTAG_SUPPORTED

SOC_TEMP_SENSOR_SUPPORTED

SOC_XT_WDT_SUPPORTED

SOC_WIFI_SUPPORTED

SOC_SUPPORTS_SECURE_DL_MODE

SOC_EFUSE_KEY_PURPOSE_FIELD

SOC_EFUSE_HAS_EFUSE_RST_BUG

SOC_RTC_FAST_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_SYSTIMER_SUPPORTED

SOC_SUPPORT_COEXISTENCE

SOC_AES_SUPPORTED

SOC_MPI_SUPPORTED

SOC_SHA_SUPPORTED

SOC_HMAC_SUPPORTED

SOC_DIG_SIGN_SUPPORTED

SOC_FLASH_ENC_SUPPORTED

SOC_SECURE_BOOT_SUPPORTED

SOC_MEMPROT_SUPPORTED

SOC_BOD_SUPPORTED

SOC_XTAL_SUPPORT_40M

SOC_AES_SUPPORT_DMA

SOC_AES_GDMA

SOC_AES_SUPPORT_AES_128

SOC_AES_SUPPORT_AES_256

SOC_ADC_DIG_CTRL_SUPPORTED: < SAR ADC Module

SOC_ADC_ARBITER_SUPPORTED

SOC_ADC_DIG_IIR_FILTER_SUPPORTED

SOC_ADC_MONITOR_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: One pattern table, each contains 8 items. Each item takes 1 byte

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_IIR_FILTER_NUM

SOC_ADC_DIGI_MONITOR_NUM: F_sample = F_digi_con / 2 / interval. F_digi_con = 5M for now. 30 <= interval <= 4095

SOC_ADC_SAMPLE_FREQ_THRES_HIGH

SOC_ADC_SAMPLE_FREQ_THRES_LOW: RTC

SOC_ADC_RTC_MIN_BITWIDTH

SOC_ADC_RTC_MAX_BITWIDTH: Calibration

SOC_ADC_CALIBRATION_V1_SUPPORTED: support HW offset calibration version 1

SOC_ADC_SELF_HW_CALI_SUPPORTED: support HW offset self calibration

SOC_APB_BACKUP_DMA

SOC_BROWNOUT_RESET_SUPPORTED

SOC_SHARED_IDCACHE_SUPPORTED

SOC_CACHE_MEMORY_IBANK_SIZE

SOC_CPU_CORES_NUM

SOC_CPU_INTR_NUM

SOC_CPU_HAS_FLEXIBLE_INTC

SOC_CPU_BREAKPOINTS_NUM

SOC_CPU_WATCHPOINTS_NUM

SOC_CPU_WATCHPOINT_SIZE

SOC_DS_SIGNATURE_MAX_BIT_LEN: The maximum length of a Digital Signature in bits.

SOC_DS_KEY_PARAM_MD_IV_LENGTH: Initialization vector (IV) length for the RSA key parameter message digest (MD) in bytes.

SOC_DS_KEY_CHECK_MAX_WAIT_US: Maximum wait time for DS parameter decryption key. If overdue, then key error. See TRM DS chapter for more details

SOC_GDMA_GROUPS

SOC_GDMA_PAIRS_PER_GROUP

SOC_GDMA_TX_RX_SHARE_INTERRUPT

SOC_GPIO_PORT

SOC_GPIO_PIN_COUNT

SOC_GPIO_SUPPORT_PIN_GLITCH_FILTER

SOC_GPIO_FILTER_CLK_SUPPORT_APB

SOC_GPIO_SUPPORT_FORCE_HOLD

SOC_GPIO_SUPPORT_DEEPSLEEP_WAKEUP

SOC_GPIO_VALID_GPIO_MASK

SOC_GPIO_VALID_OUTPUT_GPIO_MASK

SOC_GPIO_DEEP_SLEEP_WAKE_VALID_GPIO_MASK

SOC_GPIO_VALID_DIGITAL_IO_PAD_MASK

SOC_DEDIC_GPIO_OUT_CHANNELS_NUM: 8 outward channels on each CPU core

SOC_DEDIC_GPIO_IN_CHANNELS_NUM: 8 inward channels on each CPU core

SOC_DEDIC_PERIPH_ALWAYS_ENABLE: The dedicated GPIO (a.k.a. fast GPIO) is featured by some customized CPU instructions, which is always enabled

SOC_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_HW_CLR_BUS

SOC_I2C_SUPPORT_XTAL

SOC_I2C_SUPPORT_RTC

SOC_I2S_NUM

SOC_I2S_HW_VERSION_2

SOC_I2S_SUPPORTS_XTAL

SOC_I2S_SUPPORTS_PLL_F160M

SOC_I2S_SUPPORTS_PCM

SOC_I2S_SUPPORTS_PDM

SOC_I2S_SUPPORTS_PDM_TX

SOC_I2S_PDM_MAX_TX_LINES

SOC_I2S_SUPPORTS_TDM

SOC_LEDC_SUPPORT_APB_CLOCK

SOC_LEDC_SUPPORT_XTAL_CLOCK

SOC_LEDC_CHANNEL_NUM

SOC_LEDC_TIMER_BIT_WIDTH

SOC_LEDC_SUPPORT_FADE_STOP

SOC_MMU_LINEAR_ADDRESS_REGION_NUM

SOC_MMU_PERIPH_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_RMT_GROUPS: One RMT group

SOC_RMT_TX_CANDIDATES_PER_GROUP: Number of channels that capable of Transmit

SOC_RMT_RX_CANDIDATES_PER_GROUP: Number of channels that capable of Receive

SOC_RMT_CHANNELS_PER_GROUP: Total 4 channels

SOC_RMT_MEM_WORDS_PER_CHANNEL: Each channel owns 48 words memory (1 word = 4 Bytes)

SOC_RMT_SUPPORT_RX_PINGPONG: Support Ping-Pong mode on RX path

SOC_RMT_SUPPORT_RX_DEMODULATION: Support signal demodulation on RX path (i.e. remove carrier)

SOC_RMT_SUPPORT_TX_ASYNC_STOP: Support stop transmission asynchronously

SOC_RMT_SUPPORT_TX_LOOP_COUNT: Support transmit specified number of cycles in loop mode

SOC_RMT_SUPPORT_TX_SYNCHRO: Support coordinate a group of TX channels to start simultaneously

SOC_RMT_SUPPORT_TX_CARRIER_DATA_ONLY: TX carrier can be modulated to data phase only

SOC_RMT_SUPPORT_XTAL: Support set XTAL clock as the RMT clock source

SOC_RMT_SUPPORT_APB: Support set APB as the RMT clock source

SOC_RMT_SUPPORT_RC_FAST: Support set RC_FAST clock as the RMT clock source

SOC_RTC_CNTL_CPU_PD_DMA_BUS_WIDTH

SOC_RTC_CNTL_CPU_PD_REG_FILE_NUM

SOC_RTC_CNTL_CPU_PD_DMA_ADDR_ALIGN

SOC_RTC_CNTL_CPU_PD_DMA_BLOCK_SIZE

SOC_RTC_CNTL_CPU_PD_RETENTION_MEM_SIZE

SOC_RTCIO_PIN_COUNT

SOC_RSA_MAX_BIT_LEN

SOC_SHA_DMA_MAX_BUFFER_SIZE

SOC_SHA_SUPPORT_DMA

SOC_SHA_SUPPORT_RESUME

SOC_SHA_GDMA

SOC_SHA_SUPPORT_SHA1

SOC_SHA_SUPPORT_SHA224

SOC_SHA_SUPPORT_SHA256

SOC_SDM_GROUPS

SOC_SDM_CHANNELS_PER_GROUP

SOC_SDM_CLK_SUPPORT_APB

SOC_SPI_PERIPH_NUM

SOC_SPI_PERIPH_CS_NUM(i)

SOC_SPI_MAX_CS_NUM

SOC_SPI_MAXIMUM_BUFFER_SIZE

SOC_SPI_SUPPORT_DDRCLK

SOC_SPI_SLAVE_SUPPORT_SEG_TRANS

SOC_SPI_SUPPORT_CD_SIG

SOC_SPI_SUPPORT_CONTINUOUS_TRANS

SOC_SPI_SUPPORT_SLAVE_HD_VER2

SOC_SPI_SUPPORT_CLK_APB

SOC_SPI_SUPPORT_CLK_XTAL

SOC_SPI_PERIPH_SUPPORT_MULTILINE_MODE(host_id)

SOC_SPI_PERIPH_SUPPORT_CONTROL_DUMMY_OUT

SOC_MEMSPI_IS_INDEPENDENT

SOC_SPI_MAX_PRE_DIVIDER

SOC_SPI_MEM_SUPPORT_AUTO_WAIT_IDLE

SOC_SPI_MEM_SUPPORT_AUTO_SUSPEND

SOC_SPI_MEM_SUPPORT_AUTO_RESUME

SOC_SPI_MEM_SUPPORT_IDLE_INTR

SOC_SPI_MEM_SUPPORT_SW_SUSPEND

SOC_SPI_MEM_SUPPORT_CHECK_SUS

SOC_SPI_MEM_SUPPORT_CONFIG_GPIO_BY_EFUSE

SOC_SPI_MEM_SUPPORT_WRAP

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_SYSTIMER_COUNTER_NUM

SOC_SYSTIMER_ALARM_NUM

SOC_SYSTIMER_BIT_WIDTH_LO

SOC_SYSTIMER_BIT_WIDTH_HI

SOC_SYSTIMER_FIXED_DIVIDER

SOC_SYSTIMER_INT_LEVEL

SOC_SYSTIMER_ALARM_MISS_COMPENSATE

SOC_TIMER_GROUPS

SOC_TIMER_GROUP_TIMERS_PER_GROUP

SOC_TIMER_GROUP_COUNTER_BIT_WIDTH

SOC_TIMER_GROUP_SUPPORT_XTAL

SOC_TIMER_GROUP_SUPPORT_APB

SOC_TIMER_GROUP_TOTAL_TIMERS

SOC_MWDT_SUPPORT_XTAL

SOC_TWAI_CONTROLLER_NUM

SOC_TWAI_CLK_SUPPORT_APB

SOC_TWAI_BRP_MIN

SOC_TWAI_BRP_MAX

SOC_TWAI_SUPPORTS_RX_STATUS

SOC_EFUSE_DIS_DOWNLOAD_ICACHE

SOC_EFUSE_DIS_PAD_JTAG

SOC_EFUSE_DIS_USB_JTAG

SOC_EFUSE_DIS_DIRECT_BOOT

SOC_EFUSE_SOFT_DIS_JTAG

SOC_EFUSE_DIS_ICACHE

SOC_EFUSE_BLOCK9_KEY_PURPOSE_QUIRK

SOC_SECURE_BOOT_V2_RSA

SOC_EFUSE_SECURE_BOOT_KEY_DIGESTS

SOC_EFUSE_REVOKE_BOOT_KEY_DIGESTS

SOC_SUPPORT_SECURE_BOOT_REVOKE_KEY

SOC_FLASH_ENCRYPTED_XTS_AES_BLOCK_MAX

SOC_FLASH_ENCRYPTION_XTS_AES

SOC_FLASH_ENCRYPTION_XTS_AES_128

SOC_MEMPROT_CPU_PREFETCH_PAD_SIZE

SOC_MEMPROT_MEM_ALIGN_SIZE

SOC_UART_NUM

SOC_UART_FIFO_LEN: The UART hardware FIFO length

SOC_UART_BITRATE_MAX: Max bit rate supported by UART

SOC_UART_SUPPORT_APB_CLK: Support APB as the clock source

SOC_UART_SUPPORT_RTC_CLK: Support RTC clock as the clock source

SOC_UART_SUPPORT_XTAL_CLK: Support XTAL clock as the clock source

SOC_UART_SUPPORT_WAKEUP_INT: Support UART wakeup interrupt

SOC_UART_REQUIRE_CORE_RESET

SOC_UART_SUPPORT_FSM_TX_WAIT_SEND

SOC_COEX_HW_PTI

SOC_EXTERNAL_COEX_ADVANCE: HARDWARE ADVANCED EXTERNAL COEXISTENCE CAPS

SOC_EXTERNAL_COEX_LEADER_TX_LINE: EXTERNAL COEXISTENCE TX LINE CAPS

SOC_PHY_DIG_REGS_MEM_SIZE

SOC_MAC_BB_PD_MEM_SIZE

SOC_WIFI_LIGHT_SLEEP_CLK_WIDTH

SOC_PM_SUPPORT_WIFI_WAKEUP

SOC_PM_SUPPORT_BT_WAKEUP

SOC_PM_SUPPORT_CPU_PD

SOC_PM_SUPPORT_WIFI_PD

SOC_PM_SUPPORT_BT_PD

SOC_PM_SUPPORT_RC_FAST_PD

SOC_PM_SUPPORT_VDDSDIO_PD

SOC_PM_SUPPORT_MAC_BB_PD

SOC_PM_CPU_RETENTION_BY_RTCCNTL

SOC_PM_MODEM_RETENTION_BY_BACKUPDMA

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_TEMPERATURE_SENSOR_SUPPORT_FAST_RC

SOC_TEMPERATURE_SENSOR_SUPPORT_XTAL

SOC_WIFI_HW_TSF: Support hardware TSF

SOC_WIFI_FTM_SUPPORT: Support FTM

SOC_WIFI_GCMP_SUPPORT: Support GCMP(GCMP128 and GCMP256)

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_BLE_SUPPORTED: Support Bluetooth Low Energy hardware

SOC_BLE_MESH_SUPPORTED: Support BLE MESH

SOC_BLE_50_SUPPORTED: Support Bluetooth 5.0

SOC_BLE_DEVICE_PRIVACY_SUPPORTED: Support BLE device privacy mode

SOC_BLUFI_SUPPORTED: Support BLUFI

SOC_PHY_COMBO_MODULE: Support Wi-Fi and BLE

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