The RI78V4 V2.xx.xx consists of the following two types of modules.

(1) Kernel

The kernel, which is the processing block that forms the core of the RI78V4 V2.xx.xx and the main processing block for the service calls provided by the RI78V4, provides the following functions.

- Task management functions

- Task dependent synchronization functions

- Synchronization and communication functions (Semaphores, eventflags, data queues, mailboxes)

- Memory pool management functions (Fixed-sized memory pools)

- Time management functions

- System state management functions

- Interrupt management functions

- System configuration management functions

- Scheduler

(2) User-own coding module

To support various execution environments, the RI78V4 V2.xx.xx extracts hardware-dependent processing that is required to execute processing as user-own coding modules, and provides it as sample source files. This enhances portability for various execution environments and facilitates customization as well.

The following lists the user-own coding modules extracted for each function.

- Interrupt management functions (Interrupt entry processing)

- System configuration management functions (Boot processing, initialization routine)

- Scheduler (Idle routine)

Remark For interrupt handlers written by C language(defined the attribution "TA_HLNG" in interrupt handler definition "DEF_INH" in system configuration file), the user is not required to write the relevant interrupt entry processing because the C compiler automatically outputs the interrupt entry processing corresponding to the interrupt request name.

Remark See "RI78V4 V2.xx.xx Coding" for details.