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ST STM32F446 Series User Manual

ST STM32F446 Series
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Reset and clock control (RCC) RM0390
174/1328 RM0390 Rev 4
0x50
RCC_AHB1
LPENR
Res.
OTGHSULPILPEN
OTGHSLPEN
Res.
Res.
Res.
Res.
Res.
Res.
DMA2LPEN
DMA1LPEN
Res.
Res.
BKPSRAMLPEN
SRAM2LPEN
SRAM1LPEN
FLITFLPEN
Res.
Res.
CRCLPEN
Res.
Res.
Res.
Res.
GPIOHLPEN
GPIOGLPEN
GPIOFLPEN
GPIOELPEN
GPIODLPEN
GPIOCLPEN
GPIOBLPEN
GPIOALPEN
Reset value 11 11 1111 1 11111111
0x54
RCC_AHB2
LPENR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
OTGFSLPEN
Res.
Res.
Res.
Res.
Res.
Res.
DCMILPEN
Reset value 11
0x58
RCC_AHB3
LPENR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
QSPILPEN
FMCLPEN
Reset value 11
0x5C
Reserved
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Reset value
0x60
RCC_APB1
LPENR
Res.
Res.
DACLPEN
PWRLPEN
CECLPEN
CAN2LPEN
CAN1LPEN
FMPI2C1LPEN
I2C3LPEN
I2C2LPEN
I2C1LPEN
UART5LPEN
UART4LPEN
USART3LPEN
USART2LPEN
SPDIFRXLPEN
SPI3LPEN
SPI2LPEN
Res.
Res.
WWDGLPEN
Res.
Res.
TIM14LPEN
TIM13LPEN
TIM12LPEN
TIM7LPEN
TIM6LPEN
TIM5LPEN
TIM4LPEN
TIM3LPEN
TIM2LPEN
Reset value 1111111111111111 1 111111111
0x64
RCC_APB2
LPENR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
SAI2LPEN
SAI1LPEN
Res.
Res.
Res.
TIM11LPEN
TIM10LPEN
TIM9LPEN
Res.
SYSCFGLPEN
SPI4LPEN
SPI1LPEN
SDIOLPEN
ADC3LPEN
ADC2LPEN
ADC1LPEN
Res.
Res.
USART6LPEN
USART1LPEN
Res.
Res.
TIM8LPEN
TIM1LPEN
Reset value 11 111 1111111 11 11
0x68
Reserved
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Reset value
0x6C
Reserved
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Reset value
0x70
RCC_BDCR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
BDRST
RTCEN
Res.
Res.
Res.
Res.
Res.
RTCSEL 1
RTCSEL 0
Res.
Res.
Res.
Res.
LSEMOD
LSEBYP
LSERDY
LSEON
Reset value 0 0 0 0 0 0 0 0
0x74
RCC_CSR
LPWRRSTF
WWDGRSTF
WDGRSTF
SFTRSTF
PORRSTF
PADRSTF
BORRSTF
RMVF
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
LSIRDY
LSION
Reset value 00001110 00
Table 21. RCC register map and reset values (continued)
Addr.
offset
Register
name
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0

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ST STM32F446 Series Specifications

General IconGeneral
BrandST
ModelSTM32F446 Series
CategoryMicrocontrollers
LanguageEnglish

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