STMicroelectronics /STM32GBK1CBT6 /RCC /RCC_CCIPR

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Interpret as RCC_CCIPR

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (B_0x0)USART1SEL 0 (B_0x0)USART2SEL 0 (B_0x0)USART3SEL 0 (B_0x0)UART4SEL 0 (B_0x0)UART5SEL 0 (B_0x0)LPUART1SEL 0 (B_0x0)I2C1SEL 0 (B_0x0)I2C2SEL 0 (B_0x0)I2C3SEL 0 (B_0x0)LPTIM1SEL 0 (B_0x0)SAI1SEL 0 (B_0x0)I2S23SEL 0FDCANSEL 0 (B_0x0)CLK48SEL 0 (B_0x0)ADC12SEL 0 (B_0x0)ADC345SEL

SAI1SEL=B_0x0, UART5SEL=B_0x0, LPTIM1SEL=B_0x0, ADC345SEL=B_0x0, CLK48SEL=B_0x0, USART3SEL=B_0x0, I2C2SEL=B_0x0, ADC12SEL=B_0x0, UART4SEL=B_0x0, USART2SEL=B_0x0, I2S23SEL=B_0x0, LPUART1SEL=B_0x0, USART1SEL=B_0x0, I2C3SEL=B_0x0, I2C1SEL=B_0x0

Description

Peripherals independent clock configuration register

Fields

USART1SEL

USART1 clock source selection This bit is set and cleared by software to select the USART1 clock source.

0 (B_0x0): PCLK selected as USART1 clock

1 (B_0x1): System clock (SYSCLK) selected as USART1 clock

2 (B_0x2): HSI16 clock selected as USART1 clock

3 (B_0x3): LSE clock selected as USART1 clock

USART2SEL

USART2 clock source selection This bit is set and cleared by software to select the USART2 clock source.

0 (B_0x0): PCLK selected as USART2 clock

1 (B_0x1): System clock (SYSCLK) selected as USART2 clock

2 (B_0x2): HSI16 clock selected as USART2 clock

3 (B_0x3): LSE clock selected as USART2 clock

USART3SEL

USART3 clock source selection This bit is set and cleared by software to select the USART3 clock source.

0 (B_0x0): PCLK selected as USART3 clock

1 (B_0x1): System clock (SYSCLK) selected as USART3 clock

2 (B_0x2): HSI16 clock selected as USART3 clock

3 (B_0x3): LSE clock selected as USART3 clock

UART4SEL

UART4 clock source selection This bit is set and cleared by software to select the UART4 clock source.

0 (B_0x0): PCLK selected as UART4 clock

1 (B_0x1): System clock (SYSCLK) selected as UART4 clock

2 (B_0x2): HSI16 clock selected as UART4 clock

3 (B_0x3): LSE clock selected as UART4 clock

UART5SEL

UART5 clock source selection These bits are set and cleared by software to select the UART5 clock source.

0 (B_0x0): PCLK selected as UART5 clock

1 (B_0x1): System clock (SYSCLK) selected as UART5 clock

2 (B_0x2): HSI16 clock selected as UART5 clock

3 (B_0x3): LSE clock selected as UART5 clock

LPUART1SEL

LPUART1 clock source selection These bits are set and cleared by software to select the LPUART1 clock source.

0 (B_0x0): PCLK selected as LPUART1 clock

1 (B_0x1): System clock (SYSCLK) selected as LPUART1 clock

2 (B_0x2): HSI16 clock selected as LPUART1 clock

3 (B_0x3): LSE clock selected as LPUART1 clock

I2C1SEL

I2C1 clock source selection These bits are set and cleared by software to select the I2C1 clock source.

0 (B_0x0): PCLK selected as I2C1 clock

1 (B_0x1): System clock (SYSCLK) selected as I2C1 clock

2 (B_0x2): HSI16 clock selected as I2C1 clock

3 (B_0x3): Reserved

I2C2SEL

I2C2 clock source selection These bits are set and cleared by software to select the I2C2 clock source.

0 (B_0x0): PCLK selected as I2C2 clock

1 (B_0x1): System clock (SYSCLK) selected as I2C2 clock

2 (B_0x2): HSI16 clock selected as I2C2 clock

3 (B_0x3): Reserved

I2C3SEL

I2C3 clock source selection These bits are set and cleared by software to select the I2C3 clock source.

0 (B_0x0): PCLK selected as I2C3 clock

1 (B_0x1): System clock (SYSCLK) selected as I2C3 clock

2 (B_0x2): HSI16 clock selected as I2C3 clock

3 (B_0x3): Reserved

LPTIM1SEL

Low power timer 1 clock source selection These bits are set and cleared by software to select the LPTIM1 clock source.

0 (B_0x0): PCLK selected as LPTIM1 clock

1 (B_0x1): LSI clock selected as LPTIM1 clock

2 (B_0x2): HSI16 clock selected as LPTIM1 clock

3 (B_0x3): LSE clock selected as LPTIM1 clock

SAI1SEL

clock source selection These bits are set and cleared by software to select the SAI clock source.

0 (B_0x0): System clock selected as SAI clock

1 (B_0x1): PLL “Q” clock selected as SAI clock

2 (B_0x2): Clock provided on I2S_CKIN pin selected as SAI clock

3 (B_0x3): HSI16 clock selected as SAI clock

I2S23SEL

clock source selection These bits are set and cleared by software to select the I2S23 clock source.

0 (B_0x0): System clock selected as I2S23 clock

1 (B_0x1): PLL “Q” clock selected as I2S23 clock

2 (B_0x2): Clock provided on I2S_CKIN pin is selected as I2S23 clock

3 (B_0x3): HSI16 clock selected as I2S23 clock.

FDCANSEL

None

CLK48SEL

48 MHz clock source selection These bits are set and cleared by software to select the 48 MHz clock source used by USB device FS and RNG.

0 (B_0x0): HSI48 clock selected as 48 MHz clock

1 (B_0x1): Reserved

2 (B_0x2): PLL “Q” clock (PLL48M1CLK) selected as 48 MHz clock

3 (B_0x3): Reserved, must be kept at reset value

ADC12SEL

ADC1/2 clock source selection These bits are set and cleared by software to select the clock source used by the ADC interface.

0 (B_0x0): No clock selected

1 (B_0x1): PLL “P” clock selected as ADC1/2 clock

2 (B_0x2): System clock selected as ADC1/2 clock

3 (B_0x3): Reserved

ADC345SEL

ADC3/4/5 clock source selection These bits are set and cleared by software to select the clock source used by the ADC345 interface.

0 (B_0x0): No clock selected

1 (B_0x1): PLL “P” clock selected as ADC345 clock

2 (B_0x2): System clock selected as ADC3/4/5 clock

3 (B_0x3): Reserved.

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