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