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Is it possible to operate CPU which can be applied different voltages?

Latest Updated:03/07/2012

Question:

Is it possible to operate the CPU which can be applied different voltages to VCC1 and VCC2 (VCC1>=VCC2), turning off VCC1 or VCC2? In addition, which is the CPU and peripheral power supply for the operation, VCC1 or VCC2?

Answer:

It is impossible to operate the CPU, when VCC1 is OFF and VCC2 is ON, and vice versa. The voltage applied to VCC1 and VCC2 should meet the recommended conditions for the operation. The CPU and peripheral power supply is VCC1.
Suitable Products
M32C/8A
M32C/88
M32C/87
M32C/85
M32C/84
M32C/80
M16C/62P
M16C/63
M16C/64A
M16C/64C
M16C/65
M16C/65C
M16C/6C