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Using bit-band and BME on KE04, KE06 Subfamilies

Posted: 06 May 2014     Print Version  Bookmark and Share

Keywords:ARM  processor  Freescale  Upper SRAM  KE04 

As the bit-band region is optional on the ARM Cortex-M0+ processor, Freescale has implemented an Upper SRAM (SRAM_U) bit-band region on the KE04 and KE06 subfamily devices. The bit-band region operation is like that of the ARM Cortex-M3 and ARM Cortex-M4 processors. It 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. It enables individual bits to be toggled without performing a read/modify/write sequence.

View the PDF document for more information.

Originally published by Freescale Semiconductor at www.freescale.com as "How to Use Bit-band and BME on the KE04 and KE06 Subfamilies".





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