stm32-data/data/registers/rcc_c0.yaml
2023-01-17 18:51:41 +01:00

965 lines
36 KiB
YAML

---
block/RCC:
description: RCC address block description
items:
- name: CR
description: RCC clock control register
byte_offset: 0
fieldset: CR
- name: ICSCR
description: RCC internal clock source calibration register
byte_offset: 4
fieldset: ICSCR
- name: CFGR
description: RCC clock configuration register
byte_offset: 8
fieldset: CFGR
- name: CIER
description: RCC clock interrupt enable register
byte_offset: 24
fieldset: CIER
- name: CIFR
description: RCC clock interrupt flag register
byte_offset: 28
fieldset: CIFR
- name: CICR
description: RCC clock interrupt clear register
byte_offset: 32
fieldset: CICR
- name: GPIORSTR
description: RCC I/O port reset register
byte_offset: 36
fieldset: GPIORSTR
- name: AHBRSTR
description: RCC AHB peripheral reset register
byte_offset: 40
fieldset: AHBRSTR
- name: APBRSTR1
description: RCC APB peripheral reset register 1
byte_offset: 44
fieldset: APBRSTR1
- name: APBRSTR2
description: RCC APB peripheral reset register 2
byte_offset: 48
fieldset: APBRSTR2
- name: GPIOENR
description: RCC I/O port clock enable register
byte_offset: 52
fieldset: GPIOENR
- name: AHBENR
description: RCC AHB peripheral clock enable register
byte_offset: 56
fieldset: AHBENR
- name: APBENR1
description: RCC APB peripheral clock enable register 1
byte_offset: 60
fieldset: APBENR1
- name: APBENR2
description: RCC APB peripheral clock enable register 2
byte_offset: 64
fieldset: APBENR2
- name: GPIOSMENR
description: RCC I/O port in Sleep mode clock enable register
byte_offset: 68
fieldset: GPIOSMENR
- name: AHBSMENR
description: RCC AHB peripheral clock enable in Sleep/Stop mode register
byte_offset: 72
fieldset: AHBSMENR
- name: APBSMENR1
description: RCC APB peripheral clock enable in Sleep/Stop mode register 1
byte_offset: 76
fieldset: APBSMENR1
- name: APBSMENR2
description: RCC APB peripheral clock enable in Sleep/Stop mode register 2
byte_offset: 80
fieldset: APBSMENR2
- name: CCIPR
description: RCC peripherals independent clock configuration register
byte_offset: 84
fieldset: CCIPR
- name: CSR1
description: RCC control/status register 1
byte_offset: 92
fieldset: CSR1
- name: CSR2
description: RCC control/status register 2
byte_offset: 96
fieldset: CSR2
fieldset/AHBENR:
description: RCC AHB peripheral clock enable register
fields:
- name: DMA1EN
description: "DMA1 and DMAMUX clock enable\r Set and cleared by software.\r DMAMUX is enabled as long as at least one DMA peripheral is enabled."
bit_offset: 0
bit_size: 1
- name: FLASHEN
description: "Flash memory interface clock enable\r Set and cleared by software.\r This bit can only be cleared when the Flash memory is in power down mode."
bit_offset: 8
bit_size: 1
- name: CRCEN
description: "CRC clock enable\r Set and cleared by software."
bit_offset: 12
bit_size: 1
fieldset/AHBRSTR:
description: RCC AHB peripheral reset register
fields:
- name: DMA1RST
description: "DMA1 and DMAMUX reset\r Set and cleared by software."
bit_offset: 0
bit_size: 1
- name: FLASHRST
description: "Flash memory interface reset\r Set and cleared by software.\r This bit can only be set when the Flash memory is in power down mode."
bit_offset: 8
bit_size: 1
- name: CRCRST
description: "CRC reset\r Set and cleared by software."
bit_offset: 12
bit_size: 1
fieldset/AHBSMENR:
description: RCC AHB peripheral clock enable in Sleep/Stop mode register
fields:
- name: DMA1SMEN
description: "DMA1 and DMAMUX clock enable during Sleep mode\r Set and cleared by software.\r Clock to DMAMUX during Sleep mode is enabled as long as the clock in Sleep mode is enabled to at least one DMA peripheral."
bit_offset: 0
bit_size: 1
- name: FLASHSMEN
description: "Flash memory interface clock enable during Sleep mode\r Set and cleared by software.\r This bit can be activated only when the Flash memory is in power down mode."
bit_offset: 8
bit_size: 1
- name: SRAMSMEN
description: "SRAM clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 9
bit_size: 1
- name: CRCSMEN
description: "CRC clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 12
bit_size: 1
fieldset/APBENR1:
description: RCC APB peripheral clock enable register 1
fields:
- name: TIM3EN
description: "TIM3 timer clock enable\r Set and cleared by software."
bit_offset: 1
bit_size: 1
- name: RTCAPBEN
description: "RTC APB clock enable\r Set and cleared by software."
bit_offset: 10
bit_size: 1
- name: WWDGEN
description: "WWDG clock enable\r Set by software to enable the window watchdog clock. Cleared by hardware system reset\r This bit can also be set by hardware if the WWDG_SW option bit is 0."
bit_offset: 11
bit_size: 1
- name: USART2EN
description: "USART2 clock enable\r Set and cleared by software."
bit_offset: 17
bit_size: 1
- name: I2C1EN
description: "I2C1 clock enable\r Set and cleared by software."
bit_offset: 21
bit_size: 1
- name: DBGEN
description: "Debug support clock enable\r Set and cleared by software."
bit_offset: 27
bit_size: 1
- name: PWREN
description: "Power interface clock enable\r Set and cleared by software."
bit_offset: 28
bit_size: 1
fieldset/APBENR2:
description: RCC APB peripheral clock enable register 2
fields:
- name: SYSCFGEN
description: "SYSCFG clock enable\r Set and cleared by software."
bit_offset: 0
bit_size: 1
- name: TIM1EN
description: "TIM1 timer clock enable\r Set and cleared by software."
bit_offset: 11
bit_size: 1
- name: SPI1EN
description: "SPI1 clock enable\r Set and cleared by software."
bit_offset: 12
bit_size: 1
- name: USART1EN
description: "USART1 clock enable\r Set and cleared by software."
bit_offset: 14
bit_size: 1
- name: TIM14EN
description: "TIM14 timer clock enable\r Set and cleared by software."
bit_offset: 15
bit_size: 1
- name: TIM16EN
description: "TIM16 timer clock enable\r Set and cleared by software."
bit_offset: 17
bit_size: 1
- name: TIM17EN
description: "TIM16 timer clock enable\r Set and cleared by software."
bit_offset: 18
bit_size: 1
- name: ADCEN
description: "ADC clock enable\r Set and cleared by software."
bit_offset: 20
bit_size: 1
fieldset/APBRSTR1:
description: RCC APB peripheral reset register 1
fields:
- name: TIM3RST
description: "TIM3 timer reset\r Set and cleared by software."
bit_offset: 1
bit_size: 1
- name: USART2RST
description: "USART2 reset\r Set and cleared by software."
bit_offset: 17
bit_size: 1
- name: I2C1RST
description: "I2C1 reset\r Set and cleared by software."
bit_offset: 21
bit_size: 1
- name: DBGRST
description: "Debug support reset\r Set and cleared by software."
bit_offset: 27
bit_size: 1
- name: PWRRST
description: "Power interface reset\r Set and cleared by software."
bit_offset: 28
bit_size: 1
fieldset/APBRSTR2:
description: RCC APB peripheral reset register 2
fields:
- name: SYSCFGRST
description: "SYSCFG reset\r Set and cleared by software."
bit_offset: 0
bit_size: 1
- name: TIM1RST
description: "TIM1 timer reset\r Set and cleared by software."
bit_offset: 11
bit_size: 1
- name: SPI1RST
description: "SPI1 reset\r Set and cleared by software."
bit_offset: 12
bit_size: 1
- name: USART1RST
description: "USART1 reset\r Set and cleared by software."
bit_offset: 14
bit_size: 1
- name: TIM14RST
description: "TIM14 timer reset\r Set and cleared by software."
bit_offset: 15
bit_size: 1
- name: TIM16RST
description: "TIM16 timer reset\r Set and cleared by software."
bit_offset: 17
bit_size: 1
- name: TIM17RST
description: "TIM16 timer reset\r Set and cleared by software."
bit_offset: 18
bit_size: 1
- name: ADCRST
description: "ADC reset\r Set and cleared by software."
bit_offset: 20
bit_size: 1
fieldset/APBSMENR1:
description: RCC APB peripheral clock enable in Sleep/Stop mode register 1
fields:
- name: TIM3SMEN
description: "TIM3 timer clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 1
bit_size: 1
- name: RTCAPBSMEN
description: "RTC APB clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 10
bit_size: 1
- name: WWDGSMEN
description: "WWDG clock enable during Sleep and Stop modes\r Set and cleared by software."
bit_offset: 11
bit_size: 1
- name: USART2SMEN
description: "USART2 clock enable during Sleep and Stop modes\r Set and cleared by software."
bit_offset: 17
bit_size: 1
- name: I2C1SMEN
description: "I2C1 clock enable during Sleep and Stop modes\r Set and cleared by software."
bit_offset: 21
bit_size: 1
- name: DBGSMEN
description: "Debug support clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 27
bit_size: 1
- name: PWRSMEN
description: "Power interface clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 28
bit_size: 1
fieldset/APBSMENR2:
description: RCC APB peripheral clock enable in Sleep/Stop mode register 2
fields:
- name: SYSCFGSMEN
description: "SYSCFG clock enable during Sleep and Stop modes\r Set and cleared by software."
bit_offset: 0
bit_size: 1
- name: TIM1SMEN
description: "TIM1 timer clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 11
bit_size: 1
- name: SPI1SMEN
description: "SPI1 clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 12
bit_size: 1
- name: USART1SMEN
description: "USART1 clock enable during Sleep and Stop modes\r Set and cleared by software."
bit_offset: 14
bit_size: 1
- name: TIM14SMEN
description: "TIM14 timer clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 15
bit_size: 1
- name: TIM16SMEN
description: "TIM16 timer clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 17
bit_size: 1
- name: TIM17SMEN
description: "TIM16 timer clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 18
bit_size: 1
- name: ADCSMEN
description: "ADC clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 20
bit_size: 1
fieldset/CCIPR:
description: RCC peripherals independent clock configuration register
fields:
- name: USART1SEL
description: "USART1 clock source selection\r This bitfield is controlled by software to select USART1 clock source as follows:"
bit_offset: 0
bit_size: 2
enum: USART1SEL
- name: I2C1SEL
description: "I2C1 clock source selection\r This bitfield is controlled by software to select I2C1 clock source as follows:"
bit_offset: 12
bit_size: 2
enum: I2C1SEL
- name: I2S1SEL
description: "I2S1 clock source selection\r This bitfield is controlled by software to select I2S1 clock source as follows:"
bit_offset: 14
bit_size: 2
enum: I2S1SEL
- name: ADCSEL
description: "ADCs clock source selection\r This bitfield is controlled by software to select the clock source for ADC:"
bit_offset: 30
bit_size: 2
enum: ADCSEL
fieldset/CFGR:
description: RCC clock configuration register
fields:
- name: SW
description: "System clock switch\r This bitfield is controlled by software and hardware. The bitfield selects the clock for SYSCLK as follows:\r Others: Reserved\r The setting is forced by hardware to 000 (HSISYS selected) when the MCU exits Stop, or Standby, or Shutdown mode, or when the setting is 001 (HSE selected) and HSE oscillator failure is detected."
bit_offset: 0
bit_size: 3
enum: SW
- name: SWS
description: "System clock switch status\r This bitfield is controlled by hardware to indicate the clock source used as system clock:\r Others: Reserved"
bit_offset: 3
bit_size: 3
enum: SW
- name: HPRE
description: "AHB prescaler\r This bitfield is controlled by software. To produce HCLK clock, it sets the division factor of SYSCLK clock as follows:\r 0xxx: 1"
bit_offset: 8
bit_size: 4
enum: HPRE
- name: PPRE
description: "APB prescaler\r This bitfield is controlled by software. To produce PCLK clock, it sets the division factor of HCLK clock as follows:\r 0xx: 1"
bit_offset: 12
bit_size: 3
enum: PPRE
- name: MCO2SEL
description: "Microcontroller clock output 2 clock selector\r This bitfield is controlled by software. It sets the clock selector for MCO2 output as follows:\r This bitfield is controlled by software. It sets the clock selector for MCO output as follows:\r Note: This clock output may have some truncated cycles at startup or during MCO2 clock source switching."
bit_offset: 16
bit_size: 4
enum: MCOSEL
- name: MCO2PRE
description: "Microcontroller clock output 2 prescaler\r This bitfield is controlled by software. It sets the division factor of the clock sent to the MCO2 output as follows:\r ...\r It is highly recommended to set this field before the MCO2 output is enabled."
bit_offset: 20
bit_size: 4
enum: MCOPRE
- name: MCOSEL
description: "Microcontroller clock output clock selector\r This bitfield is controlled by software. It sets the clock selector for MCO output as follows:\r Note: This clock output may have some truncated cycles at startup or during MCO clock source switching. Any other value means no clock on MCO."
bit_offset: 24
bit_size: 4
enum: MCOSEL
- name: MCOPRE
description: "Microcontroller clock output prescaler\r This bitfield is controlled by software. It sets the division factor of the clock sent to the MCO output as follows:\r ...\r It is highly recommended to set this field before the MCO output is enabled."
bit_offset: 28
bit_size: 4
enum: MCOPRE
fieldset/CICR:
description: RCC clock interrupt clear register
fields:
- name: LSIRDYC
description: "LSI ready interrupt clear\r This bit is set by software to clear the LSIRDYF flag."
bit_offset: 0
bit_size: 1
- name: LSERDYC
description: "LSE ready interrupt clear\r This bit is set by software to clear the LSERDYF flag."
bit_offset: 1
bit_size: 1
- name: HSIRDYC
description: "HSI16 ready interrupt clear\r This bit is set software to clear the HSIRDYF flag."
bit_offset: 3
bit_size: 1
- name: HSERDYC
description: "HSE ready interrupt clear\r This bit is set by software to clear the HSERDYF flag."
bit_offset: 4
bit_size: 1
- name: CSSC
description: "Clock security system interrupt clear\r This bit is set by software to clear the HSECSSF flag."
bit_offset: 8
bit_size: 1
- name: LSECSSC
description: "LSE Clock security system interrupt clear\r This bit is set by software to clear the LSECSSF flag."
bit_offset: 9
bit_size: 1
fieldset/CIER:
description: RCC clock interrupt enable register
fields:
- name: LSIRDYIE
description: "LSI ready interrupt enable\r Set and cleared by software to enable/disable interrupt caused by the LSI oscillator stabilization:"
bit_offset: 0
bit_size: 1
- name: LSERDYIE
description: "LSE ready interrupt enable\r Set and cleared by software to enable/disable interrupt caused by the LSE oscillator stabilization:"
bit_offset: 1
bit_size: 1
- name: HSIRDYIE
description: "HSI16 ready interrupt enable\r Set and cleared by software to enable/disable interrupt caused by the HSI16 oscillator stabilization:"
bit_offset: 3
bit_size: 1
- name: HSERDYIE
description: "HSE ready interrupt enable\r Set and cleared by software to enable/disable interrupt caused by the HSE oscillator stabilization:"
bit_offset: 4
bit_size: 1
fieldset/CIFR:
description: RCC clock interrupt flag register
fields:
- name: LSIRDYF
description: "LSI ready interrupt flag\r This flag indicates a pending interrupt upon LSE clock getting ready.\r Set by hardware when the LSI clock becomes stable and LSIRDYDIE is set.\r Cleared by software setting the LSIRDYC bit."
bit_offset: 0
bit_size: 1
- name: LSERDYF
description: "LSE ready interrupt flag\r This flag indicates a pending interrupt upon LSE clock getting ready.\r Set by hardware when the LSE clock becomes stable and LSERDYDIE is set.\r Cleared by software setting the LSERDYC bit."
bit_offset: 1
bit_size: 1
- name: HSIRDYF
description: "HSI16 ready interrupt flag\r This flag indicates a pending interrupt upon HSI16 clock getting ready.\r Set by hardware when the HSI16 clock becomes stable and HSIRDYIE is set in response to setting the HSION (refer to ). When HSION is not set but the HSI16 oscillator is enabled by the peripheral through a clock request, this bit is not set and no interrupt is generated.\r Cleared by software setting the HSIRDYC bit."
bit_offset: 3
bit_size: 1
- name: HSERDYF
description: "HSE ready interrupt flag\r This flag indicates a pending interrupt upon HSE clock getting ready.\r Set by hardware when the HSE clock becomes stable and HSERDYIE is set.\r Cleared by software setting the HSERDYC bit."
bit_offset: 4
bit_size: 1
- name: CSSF
description: "HSE clock security system interrupt flag\r This flag indicates a pending interrupt upon HSE clock failure.\r Set by hardware when a failure is detected in the HSE oscillator.\r Cleared by software setting the CSSC bit."
bit_offset: 8
bit_size: 1
- name: LSECSSF
description: "LSE clock security system interrupt flag\r This flag indicates a pending interrupt upon LSE clock failure.\r Set by hardware when a failure is detected in the LSE oscillator.\r Cleared by software by setting the LSECSSC bit."
bit_offset: 9
bit_size: 1
fieldset/CR:
description: RCC clock control register
fields:
- name: SYSDIV
description: "System clock division factor\r This bitfield controlled by software sets the division factor of the system clock divider to produce SYSCLK clock:"
bit_offset: 2
bit_size: 3
enum: SYSDIV
- name: HSIKERDIV
description: "HSI48 kernel clock division factor\r This bitfield controlled by software sets the division factor of the kernel clock divider to produce HSIKER clock:"
bit_offset: 5
bit_size: 3
enum: HSIKERDIV
- name: HSION
description: "HSI48 clock enable\r Set and cleared by software and hardware, with hardware taking priority.\r Kept low by hardware as long as the device is in a low-power mode.\r Kept high by hardware as long as the system is clocked with a clock derived from HSI48. This includes the exit from low-power modes and the system clock fall-back to HSI48 upon failing HSE oscillator clock selected as system clock source."
bit_offset: 8
bit_size: 1
- name: HSIKERON
description: "HSI48 always-enable for peripheral kernels.\r Set and cleared by software.\r Setting the bit activates the HSI48 oscillator in Run and Stop modes, regardless of the HSION bit state. The HSI48 clock can only feed USART1, USART2, and I2C1 peripherals configured with HSI48 as kernel clock.\r Note: Keeping the HSI48 active in Stop mode allows speeding up the serial interface communication as the HSI48 clock is ready immediately upon exiting Stop mode."
bit_offset: 9
bit_size: 1
- name: HSIRDY
description: "HSI48 clock ready flag\r Set by hardware when the HSI48 oscillator is enabled through HSION and ready to use (stable).\r Note: Upon clearing HSION, HSIRDY goes low after six HSI48 clock cycles."
bit_offset: 10
bit_size: 1
- name: HSIDIV
description: "HSI48 clock division factor\r This bitfield controlled by software sets the division factor of the HSI48 clock divider to produce HSISYS clock:"
bit_offset: 11
bit_size: 3
enum: HSIDIV
- name: HSEON
description: "HSE clock enable\r Set and cleared by software.\r Cleared by hardware to stop the HSE oscillator when entering Stop, or Standby, or Shutdown mode. This bit cannot be cleared if the HSE oscillator is used directly or indirectly as the system clock."
bit_offset: 16
bit_size: 1
- name: HSERDY
description: "HSE clock ready flag\r Set by hardware to indicate that the HSE oscillator is stable and ready for use.\r Note: Upon clearing HSEON, HSERDY goes low after six HSE clock cycles."
bit_offset: 17
bit_size: 1
- name: HSEBYP
description: "HSE crystal oscillator bypass\r Set and cleared by software.\r When the bit is set, the internal HSE oscillator is bypassed for use of an external clock. The external clock must then be enabled with the HSEON bit set. Write access to the bit is only effective when the HSE oscillator is disabled."
bit_offset: 18
bit_size: 1
- name: CSSON
description: "Clock security system enable\r Set by software to enable the clock security system. When the bit is set, the clock detector is enabled by hardware when the HSE oscillator is ready, and disabled by hardware if a HSE clock failure is detected. The bit is cleared by hardware upon reset."
bit_offset: 19
bit_size: 1
fieldset/CSR1:
description: RCC control/status register 1
fields:
- name: LSEON
description: "LSE oscillator enable\r Set and cleared by software to enable LSE oscillator:"
bit_offset: 0
bit_size: 1
- name: LSERDY
description: "LSE oscillator ready\r Set and cleared by hardware to indicate when the external 32 kHz oscillator is ready (stable):\r After the LSEON bit is cleared, LSERDY goes low after 6 external low-speed oscillator clock cycles."
bit_offset: 1
bit_size: 1
- name: LSEBYP
description: "LSE oscillator bypass\r Set and cleared by software to bypass the LSE oscillator (in debug mode).\r This bit can be written only when the external 32 kHz oscillator is disabled (LSEON=0 and LSERDY=0)."
bit_offset: 2
bit_size: 1
- name: LSEDRV
description: "LSE oscillator drive capability\r Set by software to select the LSE oscillator drive capability as follows:\r Applicable when the LSE oscillator is in Xtal mode, as opposed to bypass mode."
bit_offset: 3
bit_size: 2
enum: LSEDRV
- name: LSECSSON
description: "CSS on LSE enable\r Set by software to enable the clock security system on LSE (32 kHz) oscillator as follows:\r LSECSSON must be enabled after the LSE oscillator is enabled (LSEON bit enabled) and ready (LSERDY flag set by hardware), and after the RTCSEL bit is selected.\r Once enabled, this bit cannot be disabled, except after a LSE failure detection (LSECSSD\r =1). In that case the software must disable the LSECSSON bit."
bit_offset: 5
bit_size: 1
- name: LSECSSD
description: "CSS on LSE failure Detection\r Set by hardware to indicate when a failure is detected by the clock security system\r on the external 32 kHz oscillator (LSE):"
bit_offset: 6
bit_size: 1
- name: RTCSEL
description: "RTC clock source selection\r Set by software to select the clock source for the RTC as follows:\r Once the RTC clock source is selected, it cannot be changed anymore unless the RTC domain is reset, or unless a failure is detected on LSE (LSECSSD is set). The RTCRST bit can be used to reset this bitfield to 00."
bit_offset: 8
bit_size: 2
enum: RTCSEL
- name: RTCEN
description: "RTC clock enable\r Set and cleared by software. The bit enables clock to RTC and TAMP."
bit_offset: 15
bit_size: 1
- name: RTCRST
description: "RTC domain software reset\r Set and cleared by software to reset the RTC domain:"
bit_offset: 16
bit_size: 1
- name: LSCOEN
description: "Low-speed clock output (LSCO) enable\r Set and cleared by software."
bit_offset: 24
bit_size: 1
- name: LSCOSEL
description: "Low-speed clock output selection\r Set and cleared by software to select the low-speed output clock:"
bit_offset: 25
bit_size: 1
enum: LSCOSEL
fieldset/CSR2:
description: RCC control/status register 2
fields:
- name: LSION
description: "LSI oscillator enable\r Set and cleared by software to enable/disable the LSI oscillator:"
bit_offset: 0
bit_size: 1
- name: LSIRDY
description: "LSI oscillator ready\r Set and cleared by hardware to indicate when the LSI oscillator is ready (stable):\r After the LSION bit is cleared, LSIRDY goes low after 3 LSI oscillator clock cycles. This bit can be set even if LSION = 0 if the LSI is requested by the Clock Security System on LSE, by the Independent Watchdog or by the RTC."
bit_offset: 1
bit_size: 1
- name: RMVF
description: "Remove reset flags\r Set by software to clear the reset flags."
bit_offset: 23
bit_size: 1
- name: OBLRSTF
description: "Option byte loader reset flag\r Set by hardware when a reset from the Option byte loading occurs.\r Cleared by setting the RMVF bit."
bit_offset: 25
bit_size: 1
- name: PINRSTF
description: "Pin reset flag\r Set by hardware when a reset from the NRST pin occurs.\r Cleared by setting the RMVF bit."
bit_offset: 26
bit_size: 1
- name: PWRRSTF
description: "BOR or POR/PDR flag\r Set by hardware when a BOR or POR/PDR occurs.\r Cleared by setting the RMVF bit."
bit_offset: 27
bit_size: 1
- name: SFTRSTF
description: "Software reset flag\r Set by hardware when a software reset occurs.\r Cleared by setting the RMVF bit."
bit_offset: 28
bit_size: 1
- name: IWDGRSTF
description: "Independent window watchdog reset flag\r Set by hardware when an independent watchdog reset domain occurs.\r Cleared by setting the RMVF bit."
bit_offset: 29
bit_size: 1
- name: WWDGRSTF
description: "Window watchdog reset flag\r Set by hardware when a window watchdog reset occurs.\r Cleared by setting the RMVF bit."
bit_offset: 30
bit_size: 1
- name: LPWRRSTF
description: "Low-power reset flag\r Set by hardware when a reset occurs due to illegal Stop, or Standby, or Shutdown mode entry.\r Cleared by setting the RMVF bit.\r This operates only if nRST_STOP, or nRST_STDBY or nRST_SHDW option bits are cleared."
bit_offset: 31
bit_size: 1
fieldset/ICSCR:
description: RCC internal clock source calibration register
fields:
- name: HSICAL
description: "HSI48 clock calibration\r This bitfield directly acts on the HSI48 clock frequency. Its value is a sum of an internal factory-programmed number and the value of the HSITRIM[6:0] bitfield. In the factory, the internal number is set to calibrate the HSI48 clock frequency to 48 MHz (with HSITRIM[6:0] left at its reset value). Refer to the device datasheet for HSI48 calibration accuracy and for the frequency trimming granularity.\r Note: The trimming effect presents discontinuities at HSICAL[7:0] multiples of 64."
bit_offset: 0
bit_size: 8
- name: HSITRIM
description: "HSI48 clock trimming\r The value of this bitfield contributes to the HSICAL[7:0] bitfield value.\r It allows HSI48 clock frequency user trimming.\r The HSI48 frequency accuracy as stated in the device datasheet applies when this bitfield is left at its reset value."
bit_offset: 8
bit_size: 7
fieldset/GPIOENR:
description: RCC I/O port clock enable register
fields:
- name: GPIOAEN
description: "I/O port A clock enable\r This bit is set and cleared by software."
bit_offset: 0
bit_size: 1
- name: GPIOBEN
description: "I/O port B clock enable\r This bit is set and cleared by software."
bit_offset: 1
bit_size: 1
- name: GPIOCEN
description: "I/O port C clock enable\r This bit is set and cleared by software."
bit_offset: 2
bit_size: 1
- name: GPIODEN
description: "I/O port D clock enable\r This bit is set and cleared by software."
bit_offset: 3
bit_size: 1
- name: GPIOFEN
description: "I/O port F clock enable\r This bit is set and cleared by software."
bit_offset: 5
bit_size: 1
fieldset/GPIORSTR:
description: RCC I/O port reset register
fields:
- name: GPIOARST
description: "I/O port A reset\r This bit is set and cleared by software."
bit_offset: 0
bit_size: 1
- name: GPIOBRST
description: "I/O port B reset\r This bit is set and cleared by software."
bit_offset: 1
bit_size: 1
- name: GPIOCRST
description: "I/O port C reset\r This bit is set and cleared by software."
bit_offset: 2
bit_size: 1
- name: GPIODRST
description: "I/O port D reset\r This bit is set and cleared by software."
bit_offset: 3
bit_size: 1
- name: GPIOFRST
description: "I/O port F reset\r This bit is set and cleared by software."
bit_offset: 5
bit_size: 1
fieldset/GPIOSMENR:
description: RCC I/O port in Sleep mode clock enable register
fields:
- name: GPIOASMEN
description: "I/O port A clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 0
bit_size: 1
- name: GPIOBSMEN
description: "I/O port B clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 1
bit_size: 1
- name: GPIOCSMEN
description: "I/O port C clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 2
bit_size: 1
- name: GPIODSMEN
description: "I/O port D clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 3
bit_size: 1
- name: GPIOFSMEN
description: "I/O port F clock enable during Sleep mode\r Set and cleared by software."
bit_offset: 5
bit_size: 1
enum/ADCSEL:
bit_size: 2
variants:
- name: SYSCLK
description: System clock
value: 0
- name: HSIKER
description: HSIKER
value: 2
enum/HPRE:
bit_size: 4
variants:
- name: Div1
description: SYSCLK not divided
value: 0
- name: Div2
description: SYSCLK is divided by 2
value: 8
- name: Div4
description: SYSCLK is divided by 4
value: 9
- name: Div8
description: SYSCLK is divided by 8
value: 10
- name: Div16
description: SYSCLK is divided by 16
value: 11
- name: Div64
description: SYSCLK is divided by 64
value: 12
- name: Div128
description: SYSCLK is divided by 128
value: 13
- name: Div256
description: SYSCLK is divided by 256
value: 14
- name: Div512
description: SYSCLK is divided by 512
value: 15
enum/HSIDIV:
bit_size: 3
variants:
- name: Div1
description: HSI clock is not divided
value: 0
- name: Div2
description: HSI clock is divided by 2
value: 1
- name: Div4
description: HSI clock is divided by 4
value: 2
- name: Div8
description: HSI clock is divided by 8
value: 3
- name: Div16
description: HSI clock is divided by 16
value: 4
- name: Div32
description: HSI clock is divided by 32
value: 5
- name: Div64
description: HSI clock is divided by 64
value: 6
- name: Div128
description: HSI clock is divided by 128
value: 7
enum/HSIKERDIV:
bit_size: 3
variants:
- name: Div1
description: "1"
value: 0
- name: Div2
description: "2"
value: 1
- name: Div3
description: 3 (reset value)
value: 2
- name: Div4
description: "4"
value: 3
- name: Div5
description: "5"
value: 4
- name: Div6
description: "6"
value: 5
- name: Div7
description: "7"
value: 6
- name: Div8
description: "8"
value: 7
enum/I2C1SEL:
bit_size: 2
variants:
- name: PCLK
description: PCLK
value: 0
- name: SYSCLK
description: SYSCLK
value: 1
- name: HSIKER
description: HSIKER
value: 2
enum/I2S1SEL:
bit_size: 2
variants:
- name: SYSCLK
description: SYSCLK
value: 0
- name: HSIKER
description: HSIKER
value: 2
- name: I2S_CKIN
description: I2S_CKIN
value: 3
enum/LSCOSEL:
bit_size: 1
variants:
- name: LSI
description: LSI
value: 0
- name: LSE
description: LSE
value: 1
enum/LSEDRV:
bit_size: 2
variants:
- name: Low
description: Low driving capability
value: 0
- name: MediumLow
description: Medium low driving capability
value: 1
- name: MediumHigh
description: Medium high driving capability
value: 2
- name: High
description: High driving capability
value: 3
enum/MCOPRE:
bit_size: 4
variants:
- name: Div1
description: MCO2 not divided
value: 0
- name: Div2
description: MCO clock is divided by 2
value: 1
- name: Div4
description: MCO clock is divided by 4
value: 2
- name: Div8
description: MCO clock is divided by 8
value: 3
- name: Div16
description: MCO clock is divided divided by 16
value: 4
- name: Div32
description: MCO clock is divided divided by 32
value: 5
- name: Div64
description: MCO clock is divided divided by 64
value: 6
- name: Div128
description: MCO clock is divided divided by 128
value: 7
enum/MCOSEL:
bit_size: 4
variants:
- name: NoClock
description: "No clock, MCO output disabled"
value: 0
- name: SYSCLK
description: SYSCLK selected as MCO source
value: 1
- name: HSI48
description: HSI48 selected as MCO source
value: 3
- name: HSE
description: HSE selected as MCO source
value: 4
- name: LSI
description: LSI selected as MCO source
value: 6
- name: LSE
description: LSE selected as MCO source
value: 7
enum/PPRE:
bit_size: 3
variants:
- name: Div1
description: HCLK not divided
value: 0
- name: Div2
description: HCLK is divided by 2
value: 4
- name: Div4
description: HCLK is divided by 4
value: 5
- name: Div8
description: HCLK is divided by 8
value: 6
- name: Div16
description: HCLK is divided by 16
value: 7
enum/RTCSEL:
bit_size: 2
variants:
- name: NoClock
description: No clock used as RTC clock
value: 0
- name: LSE
description: LSE used as RTC clock
value: 1
- name: LSI
description: LSI used as RTC clock
value: 2
- name: HSE_Div32
description: HSE divided by 32 used as RTC clock
value: 3
enum/SW:
bit_size: 3
variants:
- name: HSI
description: HSI selected as system clock
value: 0
- name: HSE
description: HSE selected as system clock
value: 1
- name: LSI
description: LSI selected as system clock
value: 3
- name: LSE
description: LSE selected as system clock
value: 4
enum/SYSDIV:
bit_size: 3
variants:
- name: Div1
description: "1"
value: 0
- name: Div2
description: "2"
value: 1
- name: Div3
description: 3 (reset value)
value: 2
- name: Div4
description: "4"
value: 3
- name: Div5
description: "5"
value: 4
- name: Div6
description: "6"
value: 5
- name: Div7
description: "7"
value: 6
- name: Div8
description: "8"
value: 7
enum/USART1SEL:
bit_size: 2
variants:
- name: PCLK
description: PCLK
value: 0
- name: SYSCLK
description: SYSCLK
value: 1
- name: HSIKER
description: HSIKER
value: 2
- name: LSE
description: LSE
value: 3