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R01UH0336EJ0102 Rev.1.02
Page 308 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 9 Safety Functions
Section 9 Safety Functions
This section describes an overview of the safety functions.
The safety functions are as follows.
• Peripheral bus access error detection
• Memory access protection
• Self-diagnostic BIST
• ECC
9.1 Peripheral Bus Access Error Detection
This product incorporates a detector for errors in peripheral bus access.
This is capable of detecting errors in the form of
• access to undefined areas, and
• access timeout.
9.2 Memory Access Protection
This product incorporates memory-access protection functions.
• CPU core protection
– Memory protection (MPU)
– Peripheral protection (PPU)
9.2.1
Memory Access Protection
CPU core protection can be applied to memory areas and the address spaces
specified in peripheral function registers. Rights to access can be assigned in
accord with the state of software (for example, to set up a distinction between
rights to access by the application program and drivers on the one hand and
the operating system on the other).
For details, refer to the V850E2M Architecture Manual (R01US0001E).
Содержание V850 Series
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