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Forum: µC & Digital Electronics ARM announces Cortex-M4 processor core


von Andreas S. (andreas) (Admin) Flattr this


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ARM today announced a new member of the Cortex-M processor core family, 
the Cortex-M4. It is advertised as a "DSC (digital signal controller)", 
a hybrid between microcontroller and DSP (digital signal processor). In 
features the M-series' Thumb-2 instruction set, and DSP extensions like 
single-cycle MAC (multiply-accumulate), a hardware divider, and an 
optional single precision FPU (floating point unit). The target clock 
speed is 150 MHz.

From the available information it seems that the Cortex-M4 will be 
competing with "TI's C2000 
family":http://focus.ti.com/mcu/docs/mcuprodoverview.tsp?sectionId=95&tabId=1531&familyId=916, 
which includes devices at similar clock speeds and optional FPUs, and 
Microchip's slightly lower-end 
"dsPIC":http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=75. 
Applications cited by ARM range from motor control to audio processing.

According to the press release, five semiconductor companies, including 
NXP, STMicroelectronics and Texas Instruments have already licensed the 
Cortex-M4.

More information:
* "Press 
release":http://www.arm.com/about/newsroom/arm-launches-class-leading-cortex-m4-processor-for-high-performance-digital-signal-control.php
* "Cortex-M4 product 
page":http://www.arm.com/products/processors/cortex-m/cortex-m4-processor.php

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von mipl (Guest)


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The NXP just bought the licence for this ARM core. We have to wait and 
see what it will be.

http://www.nxp.com/news/content/file_1683.html

von robertteufel (Guest)


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Hi,
all 3 major players have signed up for the Cortex-M4, NXP, TI and ST. 
There are two more "leading MCU semiconductor companies" according to 
the press release.
It is going to be fun! Let's see which vendor will have the floating 
point integrated, which one considers it just an option. The DSP 
instructions will be in all of the devices, these are not optional.

Regards, Robert
http://mcu-related.com/architectures/35-cortex-m3/96-cortex-m4

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