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MCF5272 COLDFIRE DRIVER

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It was formerly manufactured by Freescale Semiconductor formerly the semiconductor division of Motorola which merged with NXP in Timers 0 and 1 are never used by eCos so application code is free to manipulate these as required. There is no data cache. The MCF has a small instruction cache of bytes. Retrieved from ” https: By using this site, you agree to the Terms of Use and Privacy Policy.

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Freescale MC3 Board Support. This is fully supported by the processor HAL.

This always uses hardware timer 3, which should not be used directly by application code. The processor HAL provides support for the eCos system clock. The relevant code uses hardware timer 2, so that timer is no longer available for application code. The acknowledge and configure macros are only relevant for external interrupts: If the timer is required but a platform HAL provides an alternative implementation of the profiling support then this option can be disabled.

It should be noted that the Freescale documentation is occasionally confusing when it comes to numbering devices.

These options need to take into account the processor clock speed, a characteristic of the platform rather than the processor. There is no data cache.

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MCF Datasheet pdf – MCF ColdFire Integrated Microprocessor Users Manual – Motorola

It should never be necessary to mcf2572 this package explicitly. Archived from the original on Unloading the package should only happen as a side effect of switching target hardware.

Usually the processor made to sleep, halting the cpu but leaving all peripherals colfire. 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 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. From Wikipedia, the free encyclopedia.

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. Mcv5272 page was last edited on 15 Septemberat The instructions are only mc5272, 32, or 48 bits long, a simplification compared to the series. The MCF has a small instruction cache of bytes.

NXP ColdFire – Wikipedia

By default it is active and enabled if the configuration contains the gprof profiling package, otherwise inactive. By using this site, you agree to the Terms of Use and Privacy Policy.

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Motorola-Freescale-NXP processors and microcontrollers. Priority 7 corresponds to non-maskable interrupts and must be used with care: This uses hardware timer 2, so application code should not manipulate this timer if profiling is enabled. Common manufacturer s NXP Semiconductors.

NXP ColdFire

It should be read in conjunction with similar sections from the architectural and variant HAL documentation. Modified Motorola family. If gprof-based profiling is in use then that will use hardware timer 2. 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.

It was formerly manufactured by Freescale Semiconductor formerly the semiconductor division of Motorola which merged with NXP in The default behaviour is to put the processor to sleep until the next interrupt. It corresponds directly to the M68K exception number.