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RM0090: Reference manual - STMicroelectronics

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Reset and clock control for (RCC) <strong>RM0090</strong><br />

Table 26. RCC register map and reset values for STM32F42x and STM32F43x<br />

Addr.<br />

offset<br />

Register<br />

name 31<br />

0x00 RCC_CR Reserved<br />

0x04<br />

RCC_PLLCF<br />

GR<br />

0x08 RCC_CFGR<br />

MCO2 1<br />

MCO2 0<br />

30<br />

29<br />

28<br />

27<br />

26<br />

25<br />

24<br />

23<br />

22<br />

21<br />

20<br />

19<br />

18<br />

17<br />

16<br />

15<br />

14<br />

13<br />

12<br />

11<br />

10<br />

9<br />

8<br />

7<br />

6<br />

5<br />

4<br />

3<br />

2<br />

1<br />

0<br />

Reserved<br />

MCO2PRE2<br />

MCO2PRE1<br />

PLL I2SRDY<br />

PLL I2SON<br />

PLLQ 3<br />

PLLQ 2<br />

MCO2PRE0<br />

MCO1PRE2<br />

0x0C RCC_CIR Reserved<br />

0x10<br />

0x14<br />

0x18<br />

RCC_AHB1R<br />

STR<br />

RCC_AHB2R<br />

STR<br />

RCC_AHB3R<br />

STR<br />

Reserved<br />

OTGHSRST<br />

Reserved<br />

PLL RDY<br />

PLL ON<br />

PLLQ 1<br />

PLLQ 0<br />

MCO1PRE1<br />

MCO1PRE0<br />

Reserved<br />

PLLSRC<br />

I2SSRC<br />

MCO1 1<br />

Reserved<br />

MCO1 0<br />

RTCPRE 4<br />

CSSON<br />

HSEBYP<br />

Reserved<br />

RTCPRE 3<br />

RTCPRE 2<br />

HSERDY<br />

HSEON<br />

PLLP 1<br />

PLLP 0<br />

RTCPRE 1<br />

RTCPRE 0<br />

183/1416 Doc ID 018909 Rev 3<br />

ETHMACRST<br />

Reserved<br />

CSSC<br />

Reserved<br />

DMA2RST<br />

DMA1RST<br />

PLLI2SRDYC<br />

PLLRDYC<br />

HSERDYC<br />

HSIRDYC<br />

Reserved<br />

LSERDYC<br />

LSIRDYC<br />

Reserved<br />

HSICAL 7<br />

HSICAL 6<br />

Reserved<br />

PLLN 8<br />

PPRE2 2<br />

PPRE2 1<br />

Reserved<br />

0x1C Reserved Reserved<br />

0x20<br />

0x24<br />

RCC_APB1R<br />

STR<br />

RCC_APB2R<br />

STR<br />

UART8RST<br />

UART7RST<br />

DACRST<br />

PWRRST<br />

Reserved<br />

CAN2RST<br />

Reserved<br />

CAN1RST<br />

Reserved<br />

I2C3RST<br />

I2C2RST<br />

I2C1RST<br />

SPI6RST<br />

SPI5RST<br />

UART5RST<br />

UART4RST<br />

Reserved<br />

TIM11RST<br />

Reserved<br />

UART3RST<br />

UART2RST<br />

Reserved<br />

SPI3RST<br />

SPI2RST<br />

TIM10RST<br />

TIM9RST<br />

Reserved<br />

0x28 Reserved Reserved<br />

0x2C Reserved Reserved<br />

0x30<br />

0x34<br />

0x38<br />

RCC_AHB1E<br />

NR<br />

RCC_AHB2E<br />

NR<br />

RCC_AHB3E<br />

NR<br />

Reserved<br />

OTGHSULPIEN<br />

OTGHSEN<br />

ETHMACPTPEN<br />

ETHMACRXEN<br />

ETHMACTXEN<br />

ETHMACEN<br />

Reserved<br />

DMA2EN<br />

DMA1EN<br />

CCMDATARAMEN<br />

Reserved<br />

Reserved<br />

BKPSRAMEN<br />

Reserved<br />

Reserved<br />

0x3C Reserved Reserved<br />

0x40<br />

RCC_APB1E<br />

NR<br />

SPI8EN<br />

SPI7EN<br />

DACEN<br />

PWREN<br />

Reserved<br />

CAN2EN<br />

CAN1EN<br />

Reserved<br />

I2C3EN<br />

I2C2EN<br />

I2C1EN<br />

UART5EN<br />

UART4EN<br />

USART3EN<br />

USART2EN<br />

Reserved<br />

SPI3EN<br />

SYSCFGRST<br />

SPI2EN<br />

HSICAL 5<br />

HSICAL 4<br />

PLLN 7<br />

PLLN 6<br />

PPRE2 0<br />

PPRE1 2<br />

PLLI2SRDYIE<br />

PLLRDYIE<br />

Reserved<br />

CRCRST<br />

SP45RST<br />

SPI1RST<br />

Reserved<br />

CRCEN<br />

HSICAL 3<br />

HSICAL 2<br />

PLLN 5<br />

PLLN 4<br />

PPRE1 1<br />

PPRE1 0<br />

HSERDYIE<br />

HSIRDYIE<br />

WWDGRST<br />

SDIORST<br />

WWDGEN<br />

Reserved<br />

Reserved<br />

Reserved<br />

Reserved<br />

Reserved<br />

HSICAL 1<br />

HSICAL 0<br />

PLLN 3<br />

PLLN 2<br />

Reserved<br />

LSERDYIE<br />

LSIRDYIE<br />

HSITRIM 4<br />

HSITRIM 3<br />

PLLN 1<br />

PLLN 0<br />

HPRE 3<br />

HPRE 2<br />

CSSF<br />

GPIOIRST<br />

GPIOHRST<br />

TIM14RST<br />

TIM13RST<br />

ADCRST<br />

GPIOIEN<br />

GPIOHEN<br />

TIM14EN<br />

TIM13EN<br />

Reserved<br />

GPIOGRST<br />

GPIOFRST<br />

HSITRIM 2<br />

HSITRIM 1<br />

PLLM 5<br />

PLLM 4<br />

HSITRIM 0<br />

Reserved<br />

HSIRDY<br />

HSION<br />

PLLM 3<br />

PLLM 2<br />

PLLM 1<br />

PLLM 0<br />

HPRE 1<br />

HPRE 0<br />

SWS 1<br />

SWS 0<br />

SW 1<br />

SW 0<br />

PLLI2SRDYF<br />

PLLRDYF<br />

OTGFSRST<br />

RNGRST<br />

HSAHRST<br />

CRYPRST<br />

Reserved<br />

TIM12RST<br />

TIM7RST<br />

GPIOGEN<br />

GPIOFEN<br />

USART6RST<br />

USART1RST<br />

OTGFSEN<br />

RNGEN<br />

HASHEN<br />

CRYPEN<br />

TIM12EN<br />

TIM7EN<br />

GPIOERST<br />

GPIODRST<br />

TIM6RST<br />

TIM5RST<br />

GPIOEEN<br />

GPIODEN<br />

TIM6EN<br />

TIM5EN<br />

HSERDYF<br />

HSIRDYF<br />

Reserved<br />

GPIOCRST<br />

GPIOBRST<br />

Reserved<br />

TIM4RST<br />

TIM3RST<br />

GPIOCEN<br />

GPIOBEN<br />

Reserved<br />

TIM4EN<br />

TIM3EN<br />

LSERDYF<br />

LSIRDYF<br />

GPIOARST<br />

DCMIRST<br />

FSMCRST<br />

TIM2RST<br />

TIM8RST<br />

TIM1RST<br />

GPIOAEN<br />

DCMIEN<br />

FSMCEN<br />

TIM2EN

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