Renesas rl78 User Manual
RL78/G1A
CHAPTER 21 VOLTAGE DETECTOR
21.2 Configuration of Voltage Detector
The block diagram of the voltage detector is shown in Figure 21-1.
Figure 21-1. Block Diagram of Voltage Detector
<R>
LVIOMSK
V
DD
N-ch
LVILV
LVIMD
LVIF
LVISEN
Voltage detection
level selector
V
LVDH
V
LVDL
/V
LVD
Reference
voltage
source
Selector
Option byte (000C1H)
VPOC2 to VPOC0
VPOC2 to VPOC0
Option byte (000C1H)
LVIS1, LVIS0
LVIS1, LVIS0
V
DD
Voltage detection
level register (LVIS)
level register (LVIS)
Voltage detection
register (LVIM)
register (LVIM)
INTLVI
Internal reset signal
Controller
Internal bus
−
+
21.3 Registers Controlling Voltage Detector
The voltage detector is controlled by the following registers.
• Voltage detection register (LVIM)
• Voltage detection level register (LVIS)
R01UH0305EJ0200 Rev.2.00
755
Jul 04, 2013