Figure 483. Block Diagram Of Stm32 Mcu And Cortex ® -M4 With Fpu-Level; Debug Support; Overview - STMicroelectronics STM32F405 Reference Manual

Debug support (DBG)
38 Debug support (DBG)
This section applies to the whole STM32F4xx family, unless otherwise specified.
38.1

Overview

The STM32F4xx are built around a Cortex
extensions for advanced debugging features. The debug extensions allow the core to be
stopped either on a given instruction fetch (breakpoint) or data access (watchpoint). When
stopped, the core's internal state and the system's external state may be examined. Once
examination is complete, the core and the system may be restored and program execution
resumed.
The debug features are used by the debugger host when connecting to and debugging the
STM32F4xx MCUs.
Two interfaces for debug are available:
•
Serial wire
•
JTAG debug port
Figure 483. Block diagram of STM32 MCU and Cortex
Note: The debug features embedded in the Cortex
CoreSight Design Kit.
1670/1731
®
-M4 with FPU core which contains hardware

debug support

®
-M4 with FPU core are a subset of the ARM
DocID018909 Rev 11
RM0090
®
-M4 with FPU-level
®