3 * AVR 8bit RISC microcontroller (ATmega 103L, ATmega 128, ATmega 64, and many others)
5 === Motorola/Freescale ===
7 * M68K family (including M68000, M68030, M68040 and M68060)
9 * Coldfire 32bit CISC microcontroller (including MCF5272 and MCF5282)
11 * 68HC705 8bit microcontroller family (several models)
13 * DSP56K (DSP56805 and DSP56807E) - Used extensively for stepper motor control,
14 data acquisition and other mechanical devices.
18 * 80C196 - 16bit microcontroller;
20 * 80x86 - Not properly a microcontroller, but used for some embedded Linux applications nevertheless.
24 * Motorola Dragonball MX-1/MX-L - Helped porting kernel 2.6 to it.
26 * Intel PXA250/PXA255 - Wrote Linux kernel drivers for this chip
28 * Atmel's AT91SAM7C3 - Small embedded application for the FreeRTOS real-time kernel.
30 * (many others, evaluation only)
33 === Texas Instruments ===
35 * DSP TI54 series, employed for high-speed signal processing such as an FSK modem.
40 * Z80, mostly for experimental purposes.