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Bit-banding. Bit-banding maps a complete word of memory onto a single bit in the bit-band region. For example, writing to one of the alias words sets or clears the corresponding bit in the bit-band region.
8 Feb 2013 Bit-banding is a term that ARM uses to describe a feature that is available on the Cortex M3 and M4 CPU cores. Basically, the device takes a region of memory (the Bit-band region) and maps each bit in that region to an entire word in a second memory region (the Bit-band Alias Region).
4 Mar 2014 Today I'm going to show you how to speed things up in your code by using marvelous feature called “Bit-Banding". Basically bit-banding is a new way of addressing (and accessing) things in some parts of your Cortex-M3 uC address space. Well, you would probably ask if there is any room for any useful
Hintergrund. Eine RISC Architektur wie die der ARM Prozessoren besitzt oft keine Befehle, um einzelne Bits im Speicher zu manipulieren. Um ein einzelnes Bit in einem Peripherieregister zu setzen ist daher eine Folge mehrerer Befehle erforderlich, wie beispielsweise. ldr r0, =0x40012C0C ldrh r1, [r0] orr r1, #1<<9 strh r1,
18 May 2014
22 Jan 2014 I got few questions from our readers about bit-band feature in ARM Cortex microcontrollers. This seems to be so obvious but also may lead to come confusion while using bit-banding. So let's look at this feature a little bit closer. Why use bit band Simply speaking Bit banding method allows to perform atomic
WHAT?¶. Bit Banding is a method of performing atomic bitwise modifictions to memory. If you have used small PIC micros before these are like BSF and BCF (Bit Set and Bit Clear)
22 Mar 2013 Bit banding is a feature of ARM Cortex-M processors that maps up-to 1Mb each of on-chip SRAM and peripheral registers to a larger region where each 32 bit address corresponds to a single bit of the physical memory. Setting the bitband address to zero or non-zero directly and atomically sets the
Bit-banding maps a complete word of memory onto a single bit in the bit-band region. For example, writing to one of the alias words will set or clear the corresponding bit in the bitband region. It appears to be a way to get single bit atomic operation. When writing to the alias regions bit 0 of the 32 bit word is
5 Dec 2016 About this project : Simple explanation what bit band memory region is and how you can use it. You can use single instruction to read or write.
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