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August 2015 DocID027335 Rev 3 1/19
1
AN4640
Application note
Peripherals interconnections on STM32F405/7xx, STM32F415/7xx,
STM32F42xxx, STM32F43xxx, STM32F446xx and STM32F469/479xx
Introduction
This application note describes how peripherals of the microcontrollers listed in Table 1 can
communicate autonomously without any intervention from the CPU via a network known as
Peripherals interconnect matrix.
This feature enhances the CPU real-time performance, while at the same time substantially
reducing its power consumption.
The document begins with the description of the Peripherals interconnect matrix features,
then it provides an overview of the peripherals configuration and their interconnections. An
example is presented and described in detail.
This application note has to be read in conjunction with reference manuals RM0090,
RM0386 and RM0390, all available at www.st.com/stm32.
Table 1. Applicable devices
Type Product lines
Microcontrollers
STM32F405/415
STM32F407/417
STM32F427/437
STM32F429/439
STM32F446
STM32F469/479
www.st.com
