Renesas RL78 Series User Manual

RL78/F13, F14 CHAPTER 26 VOLTAGE DETECTOR
R01UH0368EJ0210 Rev.2.10 1569
Dec 10, 2015
26.4.2 When used as interrupt mode
 When starting operation
Specify the operation mode (the interrupt mode (LVIMDS1, LVIMDS0 = 0, 1)) and the detection voltage (V
LVD)
by using the option byte 000C1H/020C1H.
Do not input a high level to the RESET pin when the supply voltage is not within the operating voltage range.
Start in the following initial setting state.
 Set bit 7 (LVISEN) of the voltage detection register (LVIM) to 0 (disable rewriting of voltage detection level
register (LVIS))
 When the option byte LVIMDS1 is clear to 0 and LVIMDS0 is set to 1, the initial value of the LVIS register is set
to 01H.
Bit 7 (LVIMD) is 0 (interrupt mode).
Bit 0 (LVILV) is 1 (low-voltage detection level: V
LVDL).
Figure 26-5 shows the timing of the internal interrupt signal generated by the voltage detector.

Renesas RL78 Series Specifications

General

Core	RL78
CPU Clock Speed	Up to 32 MHz
Flash Memory	Up to 512 KB
RAM	Up to 32 KB
Operating Voltage	1.6 V to 5.5 V
Low Power Modes	HALT, STOP, SNOOZE
CPU Architecture	16-bit
Temperature Range	-40°C to +85°C
Package	LQFP
Timers	16-bit timers
Communication Interfaces	UART, I2C, LIN
A/D Converter	12-bit