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RM0033 Datasheet

advanced ARM-based 32-bit MCUs Reference manual

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RM0033
Reference manual
STM32F205xx, STM32F207xx, STM32F215xx and STM32F217xx
advanced ARM-based 32-bit MCUs
Introduction
This reference manual targets application developers. It provides complete information on
how to use the STM32F205xx, STM32F207xx, STM32F215xx and STM32F217xx
microcontroller memory and peripherals. The STM32F205xx, STM32F207xx,
STM32F215xx and STM32F217xx will be referred to as STM32F20x and STM32F21x
throughout the document, unless otherwise specified.
The STM32F20x and STM32F21x constitute a family of microcontrollers with different
memory sizes, packages and peripherals.
For ordering information, mechanical and electrical device characteristics please refer to the
STM32F20x and STM32F21x datasheets.
For information on programming, erasing and protection of the internal Flash memory
please refer to the STM32F20x and STM32F21x Flash programming manual.
For information on the ARM Cortex™-M3 core, please refer to the Cortex™-M3 Technical
Reference Manual.
Related documents
Available from www.arm.com:
Cortex™-M3 Technical Reference Manual, available from:
http://infocenter.arm.com/help/topic/com.arm.doc.ddi0337g/DDI0337G_cortex_m3_r2p0_trm.pdf
Available from your STMicroelectronics sales office:
STM32F20x and STM32F21x datasheets
STM32F20x and STM32F21x Flash programming manual
Cortex-M3 programming manual (PM0056)
April 2011
Doc ID 15403 Rev 3
www.st.com
1/1317
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STMicroelectronics Electronic Components Datasheet

RM0033 Datasheet

advanced ARM-based 32-bit MCUs Reference manual

No Preview Available !

Contents
Contents
RM0033
1 Documentation conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
1.1 List of abbreviations for registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
1.2 Peripheral availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2 Memory and bus architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
2.1 System architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
2.1.1 S0: I-bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.1.2 S1: D-bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.1.3 S2: S-bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.1.4 S3, S4: DMA memory bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.1.5 S5: DMA peripheral bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2.1.6 S6: Ethernet DMA bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2.1.7 S7: USB OTG HS DMA bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2.1.8 BusMatrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2.1.9 AHB/APB bridges (APB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2.2 Memory organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2.3 Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
2.3.1 Embedded SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
2.3.2 Bit banding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
2.3.3 Embedded Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
2.3.4 Flash memory read interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
2.3.5 Adaptive real-time memory accelerator (ART Accelerator™) . . . . . . . . 57
2.4 Boot configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
3 CRC calculation unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3.1 CRC introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3.2 CRC main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3.3 CRC functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3.4 CRC registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
3.4.1 Data register (CRC_DR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
3.4.2 Independent data register (CRC_IDR) . . . . . . . . . . . . . . . . . . . . . . . . . 61
3.4.3 Control register (CRC_CR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
3.4.4 CRC register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
2/1317
Doc ID 15403 Rev 3


Part Number RM0033
Description advanced ARM-based 32-bit MCUs Reference manual
Maker STMicroelectronics
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