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STM32L15x MPU documentation

uwe2
Associate II
Posted on September 07, 2011 at 14:21

Hello,

In the datasheet I can read, that the STM32L15x has a MPU. But I didn t find anything about it on the RM0038 reference manual.

Does anybody know, where the documentation to the MPU can be found ?

Is it the same like on other STM32 chips ?

Any hints are welcome.

#mpu
3 REPLIES 3
John F.
Senior
Posted on September 07, 2011 at 15:17

http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/APPLICATION_NOTE/CD00270081.pdf

AN3193 says,

http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/APPLICATION_NOTE/CD00270081.pdf

Energy-efficient processing

The STM32L is built around the Cortex-M3, an industry standard 32-bit core, which has

been designed, among other criteria, for low power applications. The Cortex-M3 offers a

class-leading performance and code density. Although performance is not naturally linked

with low current consumption, it is a key benefit for most of the low power applications which

have to wake up periodically to execute software tasks. In this case, the Cortex-M3 spends

less time in Run mode due to its processing performance, thus maximizing the time in deep

sleep mode. If we consider only the processing consumption, expressed in mA/DMIPS

(DMIPS standing for Dhrystone MIPS measured using the public benchmark Rev 2.0), the

performance of the Cortex M3 is significantly better than that of the other architectures, in

particular 16-bit microcontrollers.

js23
Associate III
Posted on September 07, 2011 at 16:39

Yes, the MPU is identical on all other Cortex-M3 cores. But F100/101/102/103 do not have one. Except 103 XL devices.

The MPU documentation can be found here, chapter ''core peripherials'':

http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/PROGRAMMING_MANUAL/CD00228163.pdf

(I personally think it is not a good idea to include this document in the folder ''programming manuals'' as all other docs deal with flash programming)

uwe2
Associate II
Posted on September 07, 2011 at 23:14

Thanks a lot for the link.

I overlooked it, cause my webbrowser shows at resources only F101CB. And I filtered only the L related PM00062.