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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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MM32F103CET Fiches technique(PDF) 11 Page - MindMotion Microelectronics |
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MM32F103CET Fiches technique(HTML) 11 Page - MindMotion Microelectronics |
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11 / 89 page  DS_MM32F103xx_o_Ver1.13 Specification 292534 HSI 48 MHz PLL /4 Prescaler /1,2,3... HSI/6 PLLCLK AHB Prescaler/ 1,2..512 HSE OSC 2-24 MHz LSE OSC 32.768 kHz LSI 40kHz /2 CSS /128 HSE SYSCLK SW DM DN PLLSRC PLLXTPRE LSE RTCSEL [1:0] LSI RTC Clock IWDG Clock OSC32_OUT OSC32_IN OSC_IN OSC_OUT 48MHz APB1 Prescaler /1,2,4,8,16 /8 If (APB1 Prescaler=1) x 1 else x 2 ADC Prescaler /2,4,6,8 48MHz USB/RNG SysTick Clock FCLK Cortex Free-running clock Legend: HSE = high-speed external clock signal HSI = high-speed internal clock signal LSI = low-speed internal clock signal LSE = low-speed external clock signal HSI CRS AHB Peripheral Clocks Peripheral Clock Enable TRNG Seed APB1 Peripherals Clock Peripheral Clock Enable APB1 Timer Clock Peripheral Clock Enable APB2 Prescaler /1,2,4,8,16 APB2 Peripherals Clock Max-Freq = 15 MHz If (APB2 Prescaler=1) x 1 else x 2 Peripheral Clock Enable ADC Clock Analog RNG Seed APB2 Timer Clock PLLCLK HSI HSE LSE MCO Main Clock Output MCO /2 SYSCLK LSI HSI 48 MSEL Peripheral Clock Enable /6 Other Peripheral Qspi/Tck/SDIO / LSI I2C/SPI Figure 1. Clock tree 2.2.5 Cyclic Redundancy Check (CRC) The CRC (Cyclic Redundancy Check) calculation unit uses a fixed polynomial generator to generate a CRC code from a 32-bit data word. In many applications, CRC-based techniques are used to verify the consistency of data transmission or storage. Within the scope of the EN/IEC 60335-1 standard, it provides a means of detecting flash memory errors that can be used to compute the signature of the software in real time and to compare the generated signatures when linking and www.mm32mcu.com 5/83 |
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