ARM Cortex M23 and M33 announced

Started by Paul Rubin ●October 30, 2016

http://www.arm.com/files/pdf/cortex_m23_and_cortex_m33.pdf

tldr: m23 is an m0+ follow-on and m33 is an m3/m4 follow-on with
configurable dsp and floating point options.  Both have TrustZone.  The
m33 gives 20% performance boost to the m3/m4 (wonder what happened to
the m7) while the m23 adds TrustZone to the m0+.

Reply by John Devereux ●October 30, 20162016-10-30

Paul Rubin <no.email@nospam.invalid> writes:

> http://www.arm.com/files/pdf/cortex_m23_and_cortex_m33.pdf
>
> tldr: m23 is an m0+ follow-on and m33 is an m3/m4 follow-on with
> configurable dsp and floating point options.  Both have TrustZone.  The
> m33 gives 20% performance boost to the m3/m4 (wonder what happened to
> the m7) while the m23 adds TrustZone to the m0+.

The M7 is available, ST have a range of parts as do Atmel and
NXP/freescale.

<http://www.digikey.co.uk/product-search/en/integrated-circuits-ics/embedded-microcontrollers/2556109?k=cortex%20m7>

The newer ST models have double precision FP, and they have just
announced a new 400MHz range, doubling the clock speed by moving to a
45nm process.

<http://www.st.com/content/st_com/en/about/media-center/press-item.html/p3878.html>

-- 

John Devereux

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