SoC Capabilities

This section lists definitions of the ESP32-C6’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/esp32c6/include/soc/soc_caps.h

Macros

SOC_ADC_SUPPORTED

SOC_DEDICATED_GPIO_SUPPORTED

SOC_UART_SUPPORTED

SOC_GDMA_SUPPORTED

SOC_GPTIMER_SUPPORTED

SOC_PCNT_SUPPORTED

SOC_MCPWM_SUPPORTED

SOC_TWAI_SUPPORTED

SOC_ETM_SUPPORTED

SOC_PARLIO_SUPPORTED

SOC_BT_SUPPORTED

SOC_IEEE802154_SUPPORTED

SOC_ASYNC_MEMCPY_SUPPORTED

SOC_USB_SERIAL_JTAG_SUPPORTED

SOC_TEMP_SENSOR_SUPPORTED

SOC_WIFI_SUPPORTED

SOC_SUPPORTS_SECURE_DL_MODE

SOC_ULP_SUPPORTED

SOC_LP_CORE_SUPPORTED

SOC_EFUSE_KEY_PURPOSE_FIELD

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_ECC_SUPPORTED

SOC_FLASH_ENC_SUPPORTED

SOC_SECURE_BOOT_SUPPORTED

SOC_SDIO_SLAVE_SUPPORTED

SOC_BOD_SUPPORTED

SOC_APM_SUPPORTED

SOC_PMU_SUPPORTED

SOC_PAU_SUPPORTED

SOC_LP_TIMER_SUPPORTED

SOC_LP_AON_SUPPORTED

SOC_LP_I2C_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_DIG_IIR_FILTER_SUPPORTED

SOC_ADC_MONITOR_SUPPORTED

SOC_ADC_DIG_SUPPORTED_UNIT(UNIT)

SOC_ADC_DMA_SUPPORTED

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: Two pattern tables, each contains 4 items. Each item takes 1 byte

SOC_ADC_DIGI_MAX_BITWIDTH

SOC_ADC_DIGI_MIN_BITWIDTH

SOC_ADC_DIGI_IIR_FILTER_NUM

SOC_ADC_DIGI_MONITOR_NUM

SOC_ADC_DIGI_RESULT_BYTES

SOC_ADC_DIGI_DATA_BYTES_PER_CONV: 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 Interrupt

SOC_ADC_TEMPERATURE_SHARE_INTR

SOC_APB_BACKUP_DMA

SOC_BROWNOUT_RESET_SUPPORTED

SOC_SHARED_IDCACHE_SUPPORTED

SOC_CACHE_FREEZE_SUPPORTED

SOC_CPU_CORES_NUM

SOC_CPU_INTR_NUM

SOC_CPU_HAS_FLEXIBLE_INTC

SOC_INT_PLIC_SUPPORTED

SOC_CPU_BREAKPOINTS_NUM

SOC_CPU_WATCHPOINTS_NUM

SOC_CPU_WATCHPOINT_SIZE

SOC_CPU_HAS_PMA

SOC_CPU_IDRAM_SPLIT_USING_PMP

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_SUPPORT_ETM

SOC_ETM_GROUPS

SOC_ETM_CHANNELS_PER_GROUP

SOC_GPIO_PORT

SOC_GPIO_PIN_COUNT

SOC_GPIO_SUPPORT_PIN_GLITCH_FILTER

SOC_GPIO_FLEX_GLITCH_FILTER_NUM

SOC_GPIO_SUPPORT_ETM

SOC_GPIO_ETM_EVENTS_PER_GROUP

SOC_GPIO_ETM_TASKS_PER_GROUP

SOC_GPIO_SUPPORT_RTC_INDEPENDENT

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_GPIO_SUPPORT_FORCE_HOLD

SOC_GPIO_SUPPORT_HOLD_SINGLE_IO_IN_DSLP

SOC_RTCIO_PIN_COUNT

SOC_RTCIO_INPUT_OUTPUT_SUPPORTED

SOC_RTCIO_HOLD_SUPPORTED

SOC_RTCIO_WAKE_SUPPORTED

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_SUPPORT_SLAVE

SOC_I2C_SUPPORT_HW_CLR_BUS

SOC_I2C_SUPPORT_XTAL

SOC_I2C_SUPPORT_RTC

SOC_LP_I2C_NUM

SOC_LP_I2C_FIFO_LEN: LP_I2C hardware FIFO depth

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_PLL_DIV_CLOCK

SOC_LEDC_SUPPORT_XTAL_CLOCK

SOC_LEDC_CHANNEL_NUM

SOC_LEDC_TIMER_BIT_WIDTH

SOC_LEDC_SUPPORT_FADE_STOP

SOC_LEDC_GAMMA_CURVE_FADE_SUPPORTED

SOC_LEDC_GAMMA_CURVE_FADE_RANGE_MAX

SOC_LEDC_FADE_PARAMS_BIT_WIDTH

SOC_MMU_PAGE_SIZE_CONFIGURABLE

SOC_MMU_PERIPH_NUM

SOC_MMU_LINEAR_ADDRESS_REGION_NUM

SOC_MMU_DI_VADDR_SHARED: D/I vaddr are shared

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_PCNT_SUPPORT_RUNTIME_THRES_UPDATE

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_LOOP_AUTO_STOP: Hardware support of auto-stop 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_RC_FAST: Support set RC_FAST as the RMT clock source

SOC_MCPWM_GROUPS: 1 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 fault signal detectors 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_MCPWM_SWSYNC_CAN_PROPAGATE: Software sync event can be routed to its output.

SOC_MCPWM_SUPPORT_ETM: Support ETM (Event Task Matrix)

SOC_MCPWM_CAPTURE_CLK_FROM_GROUP: Capture timer shares clock with other PWM timers.

SOC_PARLIO_GROUPS: Number of parallel IO peripherals

SOC_PARLIO_TX_UNITS_PER_GROUP: number of TX units in each group

SOC_PARLIO_RX_UNITS_PER_GROUP: number of RX units in each group

SOC_PARLIO_TX_UNIT_MAX_DATA_WIDTH: Number of data lines of the TX unit

SOC_PARLIO_RX_UNIT_MAX_DATA_WIDTH: Number of data lines of the RX unit

SOC_PARLIO_TX_RX_SHARE_INTERRUPT: TX and RX unit share the same interrupt source number

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_PLL_F80M

SOC_SDM_CLK_SUPPORT_XTAL

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_XTAL

SOC_SPI_SUPPORT_CLK_PLL_F80M

SOC_SPI_SUPPORT_CLK_RC_FAST

SOC_SPI_PERIPH_SUPPORT_MULTILINE_MODE(host_id)

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_WRAP

SOC_MEMSPI_SRC_FREQ_80M_SUPPORTED

SOC_MEMSPI_SRC_FREQ_40M_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_SUPPORT_RC_FAST

SOC_SYSTIMER_INT_LEVEL

SOC_SYSTIMER_ALARM_MISS_COMPENSATE

SOC_SYSTIMER_SUPPORT_ETM

SOC_LP_TIMER_BIT_WIDTH_LO

SOC_LP_TIMER_BIT_WIDTH_HI

SOC_TIMER_GROUPS

SOC_TIMER_GROUP_TIMERS_PER_GROUP

SOC_TIMER_GROUP_COUNTER_BIT_WIDTH

SOC_TIMER_GROUP_SUPPORT_XTAL

SOC_TIMER_GROUP_SUPPORT_RC_FAST

SOC_TIMER_GROUP_TOTAL_TIMERS

SOC_TIMER_SUPPORT_ETM

SOC_TWAI_CONTROLLER_NUM

SOC_TWAI_CLK_SUPPORT_XTAL

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_SECURE_BOOT_V2_ECC

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_UART_NUM

SOC_UART_FIFO_LEN: The UART hardware FIFO length

SOC_UART_BITRATE_MAX: Max bit rate supported by UART

SOC_UART_SUPPORT_PLL_F80M_CLK: Support PLL_F80M 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_SUPPORT_FSM_TX_WAIT_SEND

SOC_COEX_HW_PTI

SOC_PHY_DIG_REGS_MEM_SIZE

SOC_WIFI_LIGHT_SLEEP_CLK_WIDTH

SOC_PM_SUPPORT_WIFI_WAKEUP

SOC_PM_SUPPORT_BEACON_WAKEUP

SOC_PM_SUPPORT_BT_WAKEUP

SOC_PM_SUPPORT_EXT1_WAKEUP

SOC_PM_SUPPORT_CPU_PD

SOC_PM_SUPPORT_MODEM_PD

SOC_PM_SUPPORT_XTAL32K_PD

SOC_PM_SUPPORT_RC32K_PD

SOC_PM_SUPPORT_RC_FAST_PD

SOC_PM_SUPPORT_VDDSDIO_PD

SOC_PM_SUPPORT_TOP_PD

SOC_PM_SUPPORT_MAC_BB_PD

SOC_PM_SUPPORT_RTC_PERIPH_PD

SOC_PM_SUPPORT_PMU_MODEM_STATE

MAC_SUPPORT_PMU_MODEM_STATE

SOC_PM_SUPPORT_DEEPSLEEP_CHECK_STUB_ONLY: Supports CRC only the stub code in RTC memory

SOC_PM_CPU_RETENTION_BY_SW

SOC_PM_MODEM_RETENTION_BY_REGDMA

SOC_PM_PAU_LINK_NUM

SOC_CLK_RC_FAST_SUPPORT_CALIBRATION

SOC_MODEM_CLOCK_IS_INDEPENDENT

SOC_CLK_XTAL32K_SUPPORTED: Support to connect an external low frequency crystal

SOC_CLK_OSC_SLOW_SUPPORTED: Support to connect an external oscillator, not a crystal

SOC_CLK_RC32K_SUPPORTED: Support an internal 32kHz RC oscillator

SOC_TEMPERATURE_SENSOR_SUPPORT_FAST_RC

SOC_TEMPERATURE_SENSOR_SUPPORT_XTAL

SOC_TEMPERATURE_SENSOR_INTR_SUPPORT

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_HE_SUPPORT: Support Wi-Fi 6

SOC_BLE_SUPPORTED: Support Bluetooth Low Energy hardware

SOC_BLE_MESH_SUPPORTED: Support BLE MESH

SOC_ESP_NIMBLE_CONTROLLER: Support BLE EMBEDDED controller V1

SOC_BLE_50_SUPPORTED: Support Bluetooth 5.0

SOC_BLE_DEVICE_PRIVACY_SUPPORTED: Support BLE device privacy mode

SOC_BLE_POWER_CONTROL_SUPPORTED: Support Bluetooth Power Control

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