upd78f9211grt2-jjg-a ETC-unknow, upd78f9211grt2-jjg-a Datasheet - Page 200

• Manufacturer Part Number: upd78f9211grt2-jjg-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: ETC-unknow

(2) Low-voltage detection level select register (LVIS)
200
Address: FF51H, After reset: 00H
Symbol
LVIS
This register selects the low-voltage detection level.
This register can be set by an 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H
Note For a reset by LVI, the value of LVIS is not initialized.
Caution
LVIS3
Figure 14-3. Format of Low-Voltage Detection Level Select Register (LVIS)
0
0
0
0
0
0
0
0
1
1
7
0
Bits 4 to 7 must be set to 0.
LVIS2
Other than above
0
0
0
0
1
1
1
1
0
0
6
0
Note
R/W
CHAPTER 14 LOW-VOLTAGE DETECTOR
LVIS1
0
0
1
1
0
0
1
1
0
0
5
0
User’s Manual U16994EJ3V0UD
Note
LVIS0
.
0
1
0
1
0
1
0
1
0
1
4
0
V
V
V
V
V
V
V
V
V
V
Setting prohibited
LVI0
LVI1
LVI2
LVI3
LVI4
LVI5
LVI6
LVI7
LVI8
LVI9
LVIS3
(4.3 V ±0.2 V)
(4.1 V ±0.2 V)
(3.9 V ±0.2 V)
(3.7 V ±0.2 V)
(3.5 V ±0.2 V)
(3.3 V ±0.15 V)
(3.1 V ±0.15 V)
(2.85 V ±0.15 V)
(2.6 V ±0.1 V)
(2.35 V ±0.1 V)
3
LVIS2
2
Detection level
LVIS1
1
LVIS0
0