Fujitsu FR

= Fujitsu FR 32-bit Microcontrollers = "Designed specifically for embedded device control, the Fujitsu 32-bit microcontroller product line includes both general-purpose and application-specific MCUs that integrate Flash, ROM, A/D, D/A, CAN, LIN, I2C, USB, OSDC, CCD, on chip HDMI receiver, and LCD controllers to provide superior solutions for automotive, communications, computer peripheral, industrial, and consumer applications.

The FR family features a highly integrated bus architecture that ensures optimum operation with added commands for bit operation, peripheral control, direct memory-to-memory transfer, and stack generation/release. The FR family combines the ease of use of 8- and 16-bit microcontrollers with the high-code efficiency and the superb performance of a RISC CPU.

Some devices offer an external bus interface which can be connected to Fujitsu’s latest generation of graphics controllers in order to build full-featured Graphics display for portable navigation devices, home automation and appliances having touch screen LCD functions.

Fujitsu and external partners offer a full set of development tools such as starter kits, hardware- and software-debuggers and operating systems and third-party tools." (from Product Family)

From [] through Google Translate:

FR is an abbreviation of FUJITSU RISC controller.

Docs

 * Product Family
 * Instruction Manual

Disassembly

 * c# simeon
 * C - DFR
 * Nikon Emulator
 * Commercial SW - IDA Pro

Compiler
Softune V6 is official integrated development environment from Fujitsu for FR processor (fs911s.exe). From look and feel, it is very similar to VxWorks Tornado GUI, share same concept of project/workspace, same text control files format, etc.

Softune V6 library/object file formats appears to be similar to OMF, but extended to 32-bit sized records and different record IDs/contents. More details can be found in Forums or in source code of object/library dump utilities.

RTOS

 * - Softune REALOS/FR
 * Historical account of uTron OS that SoftOS is derived from : http://www.t-engine.org/wp-content/themes/wp.vicuna/pdf/en_US/TEF000-W001-110324.pdf
 * http://edevice.fujitsu.com/fj//MANUAL/MANUALp/en-pdf/CM42-00324-2E.pdf
 * http://www.pentax-hack.info/documents/downloads.html