Motorola Coldfire

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General Information

The Coldfire series of microcontrollers is based on the popular 68000 architecture. The iriver series 100 and 300 players and the iAudio M3 use the SCF5249 as their core processor, while the iAudio M5 and X5 players use SCF5250. More details regarding their inner workings can be seen in the following documentation.

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Coldfire2 Documentation

• Coldfire V2 User's Manual
• Programmer's Reference Manual
• CF5xxx Debug White Paper - interesting read for low level debug

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xCF5249

• iriver H100 and H300 > Coldfire SCF5249 + codec - Philips UDA1380TT? - IriverPort
• Cowon iAudio M3 > Coldfire SCF5249 + codec Texas Instruments TI TLV320AIC23B - IaudioPort

SCF5249 web page @ Motorola
5249 User's Manual

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xCF5250

• Cowon iAudio M5, X5 > Coldfire SCF5250 + codec Texas Instruments TI TLV320AIC23B - IaudioPort
• Sony NW-A 1000, 1200, 3000 > Coldfire SCF5250 + DSP Sony CXR710180 + DAC: Burr Brown (Texas Instruments) PCM1772 + AMP: Panasonic AN17020A?-VB - SonyNWAPort

SCF5250 web page @ Motorola
SCF5250 Datasheet
5250 User's Manual

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Key differences between xCF5249 and xCF5250

Feature	5249	5250
Core voltage	1.8V	1.2V
Max frequency	140MHz (BGA package)	120MHz
Voltage regulation	External	Internal
Onboard SRAM	96Kbyte	128Kbyte
DMA Controller	Audio and UART	Audio, UART and mem<->mem

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Software and tools

• Motorola Coldfire Emulator
• CFInit - GUI tool to generate Coldfire init code
• MCF5249 PLL Configuration Wizard

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Other links

• http://www.wildrice.com/ColdFire/ - Lots of resources for ColdFire processors; including infos uClinux.
• The basics of M68k assembly, might be useful for people who don't know the platform yet.

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