November 2012

Doc ID 16846 Rev 4

1/28

AN3117

Application note

Using the STM8L05xxx/15xxx, STM8L162xx,

STM8AL31xx/3Lxx DMA controller

Introduction

This application note describes how to use the direct memory access (DMA) controller of

the STM8L05xxx/15xxx, STM8L162xx and STM8AL31xx/3Lxx devices. Table 1 shows the

STM8 products covered by this application note.

The DMA controller, the STM8™ core and the memory system contribute to provide a high

data bandwidth and to develop very low latency response time software.

This application note also describes how to take full advantage of these features and ensure

correct response times for different peripherals and subsystems.

Note:

All examples and explanations in this document are based on the STM8L05x/STM8L15x/

STM8L16x/STM8AL31x/STM8AL3Lx standard peripheral library and the SSTM8L05xx,

STM8L15xx, STM8L162x, STM8AL31xx and STM8AL3Lxx microcontroller family reference

manual (RM0031). Please check the available resources of your product when using the

examples shown in this document.

Table 1.

Applicable products

Product family

Part numbers

Microcontrollers

– STM8L05xxx

– STM8L151C2//F2/G2/K2, STM8L151C3/F3/G3/K3

– STM8L151x4, STM8L151x6, STM8L151x8

– STM8L152x4, STM8L152x6, STM8L152x8

– STM8L162M8, STM8L162R8

– STM8AL313x, STM8AL314x, STM8AL316x

– STM8AL3L4x, STM8AL3L6x

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