FUJITSU Semiconductor - Manual (Page 217)

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32-bit FR Family
Support Tools
6. µITRON-Compliant Real Time OS for FR Family( S OFTUNE REALOS/FR)
(1) Overview
REALOS/FR is the real time OS for the FR Family of Fujitsu proprietary
32-bit MCUs, conforming to the µITRON 3.0 specifications.
• Features
µITRON 3.0 compliant
System design customized for 32-bit MCUs for control purposes
High-speed dispatch and interrupt processing
In-line expansion of system call functions
Providing a sample I/O driver
Support for a multi window configurator
Support for a REALOS dedicated, multi window debugger
• REALOS/FR Specifications
Name Description
Target CPU FR
Maximum number of task 32, 767
Maximum number of priority levels 32
Scheduling method Priority-base, event-driven type
Number of system calls S OFTUNE REALOS/FR:58
Complying specifications µITRON 3.0 specifications
Kernel coding Assembly language
Application coding C and assembly languages
Kernel size About 2.7 KB (resident) to About 7.2 KB (maximum configuration)
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