NEC 78K0 User Manual page 370

Figure 21-5. Timing of Low-Voltage Detector Interrupt Signal Generation
Supply voltage (V )
DD
LVI detection voltage
(V )
LVI
POC detection voltage
(V )
POC
2.7 V
<2>
LVIMK flag
(set by software)
LVIE flag
(set by software)
LVION flag
(set by software)
LVIF flag
INTLVI
LVIIF flag
Internal reset signal
Notes 1. The LVIMK flag is set to "1" by RESET input.
2. The LVIF and LVIIF flags may be set (1).
Remark <1> to <9> in Figure 21-5 above correspond to <1> to <9> in the description of "when starting operation"
in 21.4 (2) When used as interrupt.
370
CHAPTER 21 LOW-VOLTAGE DETECTOR
Note 1
<1>
<9> Cleared by software
<3>
<4> 2 ms or longer
<5>
<6> 0.2 ms or longer
<7>
Note 2
<8>
Cleared by software
Note 2
User's Manual U16227EJ2V0UD
Time