https://en.wikipedia.org/wiki/ARMv7-M
https://static.docs.arm.com/ddi0403/e/DDI0403E_B_armv7m_arm.pdf
http://infocenter.arm.com/help/topic/com.arm.doc.dui0552a/DUI0552A_cortex_m3_dgug.pdf
http://infocenter.arm.com/help/topic/com.arm.doc.100165_0201_00_en/arm_cortexm3_processor_trm_100165_0201_00_en.pdf

STM32f100
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00251732.pdf
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/REFERENCE_MANUAL/CD00246267.pdf
http://infocenter.arm.com/help/topic/com.arm.doc.ddi0337i/DDI0337I_cortexm3_r2p1_trm.pdf

STM32f105xx, STM32F107xx
http://www.st.com/resource/en/datasheet/stm32f105r8.pdf,
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/REFERENCE_MANUAL/CD00171190.pdf