LAPIS Semiconductor ML610421, User Manual, Page: 375 / 437

ML610Q421/ML610Q422/ML610421 User’s Manual
Chapter 27 Battery Level Detector
27 – 4
27.2.3 Battery Level Detector Control Register 1 (BLDCON1)
Address: 0F0D1H
Access: R/W
Access size: 8 bits
Initial value: 00H
7 6 5 4 3 2 1 0
BLDCON1
     
BLDF ENBL
R/W R/W R/W R/W R/W R/W R/W R R/W
Initial value 0 0 0 0 0 0 0 0
BLDCON1 is a special function register (SFR) to control the Battery Level Detector.
[Description of Bits]
•
ENBL (bit 0)
The ENBL bit is used to control activation (ON) or deactivation (OFF) of the Battery Level Detector.
The Battery Level Detector is activated (ON) and deactivated (OFF) by setting the ENBL bit to “1” and “0”,
respectively.
ENBL Description
0 Deactivates the Battery Level Detector (OFF) (initial value)
1 Activates the Battery Level Detector (ON).
•
BLDF (bit 1)
The BLDF bit is the judgment result flag of the Battery Level Detector.
The BLDF bit is set to “1” or “0” when the power supply voltage (VDD) is lower than or higher than the threshold
voltage selected by LD3 to LD0 bits of BLDCON0 register, respectively.
BLDF Description
0 Higher than the threshold voltage (initial value)
1 Lower than the threshold voltage