NEC V850ES/F 3-L Series User Manual page 715

Low-Voltage Detector
Caution
LVIMD Selection of operation mode of low voltage detection
Generate interrupt request signal
0 • INTLVIL when supply voltage V
• INTLVIH when supply voltage V
Generate internal reset signal LVIRES
1
when supply voltage V
LVIF
When
0 • supply voltage V
• operation is disabled (LVIM.LVION = 0)
1 Supply voltage of power supply V
1. After setting the LVIM.LVION bit to 1, wait for a specified time before
checking the voltage using the LVIM.LVIF bit.
The wait time is specified in the Electrical Target Specification.
2. The LVIIF bit is valid only when the LVIM.LVION = 1 and LVIM.LVIMD = 0.
3. The LVIM.LVIF bit is read-only.
4. Be sure to clear bits 2 to 6 to 0.
User's Manual U18743EE1V2UM00
< reference voltage V
DD
> reference voltage V
DD
< reference voltage V
DD
Low voltage detection flag
> reference voltage V
DD
< reference voltageV
DD
Chapter 22
LVI
LVI
LVI
or
LVI
LVI
715