The MCF has a small instruction cache of bytes. This controls the support for gprof-based profiling. Views Read Edit View history. It was formerly manufactured by Freescale Semiconductor formerly the semiconductor division of Motorola which merged with NXP in These options need to take into account the processor clock speed, a characteristic of the platform rather than the processor. Freescale MC3 Board Support.
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Retrieved from ” https: If the timer is required but a platform HAL provides an alternative implementation of the profiling support then this option can be disabled. Users can override these settings if necessary, subject to any constraints imposed by the platform HAL, but care has to be taken that the clodfire configuration still matches the actual hardware.
MCF Datasheet pdf – MCF ColdFire Integrated Microprocessor Users Manual – Motorola
It should never be necessary to load this package explicitly. This page was last edited on 15 Septemberat This uses hardware timer 2, so application code should not manipulate this timer if profiling is enabled.
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 Views Read Edit View history.
It should be noted that the Freescale documentation is occasionally confusing when it comes to numbering devices. Timers 0 and 1 are never used by eCos so application code is free coodfire manipulate these as required. Freescale MC3 Board Support.
This controls the support for gprof-based profiling. It should be read in conjunction with similar sections from the architectural and variant HAL documentation.
When compared to classic 68k hardware, the instruction set differs mainly in that it no longer has support for the binary-coded decimal BCD packed data format; it removes a number of other, less used instructions; and most instructions that are kept support fewer addressing modes. The instructions are only 16, 32, or 48 bits long, a simplification compared to the series. InFreescale also launched Kinetis, an ARM -based product line, leading some industry observers  to speculate about the codlfire of the ColdFire range, given that Freescale would have several competing CPU ranges.
Motorola-Freescale-NXP processors and microcontrollers.
NXP ColdFire – Wikipedia
Usually the processor made to sleep, halting the cpu but leaving all peripherals active. These options need to take into account the processor clock speed, a characteristic of the platform rather than the processor. This always uses hardware timer 3, which should not be used directly by application code.
Archived from the original on Common manufacturer s NXP Semiconductors.
The relevant code uses hardware timer 2, so that timer is no longer available for application code. Also, floating point intermediates are 64 bits and not 80 bits as in the and coprocessors. The MCF has colvfire small instruction cache of bytes.
It was formerly manufactured by Freescale Semiconductor formerly the semiconductor division of Motorola which merged with NXP in Unloading the package should only happen as a side effect of switching target hardware. In turn the pin settings are used to determine defaults for other hardware mccf5272, for example which of the two on-chip uarts are usable.
Modified Motorola family. If gprof-based profiling is in use then that will use hardware timer 2. By default it is active and enabled if the configuration contains the gprof profiling package, otherwise inactive.
The acknowledge and configure macros are only relevant for external interrupts: This is fully supported by the processor HAL.