GMS81C50 Datasheet, PDF (82/99 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCONTROLLERS

HYUNDAI
GMS81C50 Series
16.4 Low Voltage Indicator Register (LVIR)
Low Voltage Indication Register (LVIR) is read only Reg-
ister. It is useful to display the consumption of Batteries.
If VDD power level is below a cirtain level which is higher
than low voltage detection level ( refer to Figure 16-6 ) ,
The bit of LVIR register could be set according to the VDD
level sequentially. The VDD dection levels for Indication
are two , that is , Bit1 and Bit0 of LVIR Register. The de-
tection level of Bit0 is higer than Bit1.
bit
7
6
5
4
3
2
1
0
LVIR
-
-
-
-
-
-
LVIR1 LVIR0 <00EF h>
initial value
-
-
-
-
-
-
0
0
R/W
-
-
-
-
-
-
R
R
79