In , Freescale also launched Kinetis, an ARM -based product line, leading some industry observers [18] to speculate about the future of the ColdFire range, given that Freescale would have several competing CPU ranges. This controls the support for gprof-based profiling. Motorola-Freescale-NXP processors and microcontrollers. The processor HAL provides support for the eCos system clock. It should never be necessary to load this package explicitly. Also, floating point intermediates are 64 bits and not 80 bits as in the and coprocessors.

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It should be noted that the Freescale documentation is occasionally confusing when it comes to numbering devices. It corresponds directly to the M68K exception number.

NXP ColdFire

Usually the processor made to sleep, halting the cpu but leaving provessor peripherals active. This uses hardware timer 2, so application code should not manipulate this timer if profiling is enabled. Retrieved from ” https: By using this site, you agree to the Terms of Use and Privacy Policy. This always uses hardware timer 3, which should not be used directly by application code. The instructions are only 16, 32, or 48 bits long, a simplification compared to the series.


Motorola-Freescale-NXP processors and microcontrollers.

Views Read Edit View history. It mcf272 formerly manufactured by Freescale Semiconductor formerly the semiconductor division of Motorola which merged with NXP in From Wikipedia, the free encyclopedia. This page was last edited on 15 Septemberat Users can override these settings if necessary, subject to any constraints imposed by the platform HAL, but care has to be taken that the resulting configuration still matches the actual hardware.

The default behaviour is to put the processor to sleep until the next interrupt. By default it is active and enabled if the configuration contains the gprof profiling package, otherwise inactive.

Modified Motorola family. It should be read in conjunction with similar sections from doldfire architectural and variant HAL documentation. Archived from the original on In turn the pin settings are used to determine defaults for other hardware settings, for example which of the two on-chip uarts are usable. The colefire HAL provides support for the eCos system clock. Timers 0 and 1 are never used by eCos so application code is free to manipulate these as required.

NXP ColdFire – Wikipedia

It should never be necessary to load this package explicitly. Common manufacturer s NXP Semiconductors. If the timer is required but a platform HAL provides an alternative implementation of the profiling support then coldfjre option can be disabled. If gprof-based profiling is in use then that will use hardware timer 2.


Unloading the package should only happen as a side effect of switching target hardware. Priority 7 corresponds to non-maskable interrupts and must be used with care: The MCF has a small instruction cache of bytes.

The ColdFire instruction set is “assembly source” compatible by means of translation software available from the vendor and not entirely object code compatible with the This is fully supported by the processor HAL.

The acknowledge and configure macros are only relevant for external interrupts: The relevant code uses hardware timer 2, so that timer is no longer available for application code. This coldfige the support for gprof-based profiling. The mask and unmask operations are straightforward, simply manipulating the on-chip interrupt controller.

These options need to take into account the processor clock speed, a characteristic of the platform rather than the processor.