NEC 78K0/KD1 Series User Manual page 225

Figure 12-2. Block Diagram of Power-Fail Detection Function
ANI0/P20
ANI1/P21
ANI2/P22
ANI3/P23
ANI4/P24
ANI5/P25
ANI6/P26
ANI7/P27
ADS2 ADS1 ADS0
Analog input channel
specification register
(ADS)
CHAPTER 12 A/D CONVERTER
A/D converter
PFEN PFCM
Power-fail comparison
mode register (PFM)
Internal bus
Preliminary User's Manual U16315EJ1V0UD
PFCM PFEN
Comparator
Power-fail comparison
threshold register (PFT)
INTAD
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