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STM32L4P5CEU6TR 数据表(PDF) 39 Page - STMicroelectronics |
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STM32L4P5CEU6TR 数据表(HTML) 39 Page - STMicroelectronics |
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39 / 311 page  DS12903 Rev 2 39/311 STM32L4P5xx Functional overview 64 Figure 5. Clock tree MSv61129V2 SYSCLK MCO LSCO PLL SAI2_EXTCLK 48 MHz clock to USB, RNG to ADCx X=1,2 to IWDG to RTC to PWR HCLK to AHB bus, core, memory and DMA FCLK Cortex free running clock to Cortex system timer to APB1 peripherals to APB2 peripherals PCLK1 PCLK2 to SAI1 to SAI2 LSE HSI16 SYSCLK to USARTx X=2..5 to LPUART1 to I2Cx x=1,2,3,4 to LPTIMx x=1,2 SAI1_EXTCLK to TIMx x=2..7 OSC32_OUT OSC32_IN MSI HSI16 HSE HSE MSI HSI16 MSI SYSCLK LSE OSC 32.768 kHz /32 AHB PRESC / 1,2,..512 / 8 APB1 PRESC / 1,2,4,8,16 x1 or x2 HSI16 SYSCLK LSI LSE HSI16 APB2 PRESC / 1,2,4,8,16 to TIMx x=1,8,15,16,17 x1 or x2 to USART1 LSE HSI16 SYSCLK / P / Q / R PLLSAI1 / P / Q / R / M MSI RC 100 kHz – 48 MHz HSI RC 16 MHz HSE OSC 4-48 MHz Clock detector OSC_OUT OSC_IN / 1→16 LSI RC 32 kHz Clock source control PLLSAI3CLK PLL48M1CLK PLLCLK PLLSAI1CLK PLL48M2CLK PLLADC1CLK PLLSAI2CLK PLLLCDCLK HSI16 HSI16 HSI16 PLLSAI2 / P / Q / R HSI16 LSI LSE HSE SYSCLK PLLCLK HSI48 MSI to OCTOSPIx x=1,2 MSI MSI HSI16 DFSDM audio clock to SDMMCx x=1,2 PLLSAI2DIVR LTDC clock / M / M RC 48 MHz CRS clock |
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