NEC 78K0S/KA1+ Preliminary User's Manual page 250
8-bit single-chip microcontrollers
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- User manual (410 pages) ,
- Application note (49 pages) ,
- Application note (38 pages)
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(2) Low-voltage detection level select register (LVIS)
This register selects the low-voltage detection level.
This register can be set by an 8-bit memory manipulation instruction.
Reset input clears this register to 00H.
Address: FF51H, After reset: 00H R/W
Symbol
LVIS
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250
CHAPTER 16 LOW-VOLTAGE DETECTOR
Figure 16-3. Format of Low-Voltage Detection Level Select Register (LVIS)
7
6
0
0
LVIS3
LVIS2
LVIS1
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
Other than above
Caution
Bits 4 to 7 must be set to 0.
Preliminary User's Manual U16898EJ1V0UD
5
4
3
0
0
LVIS3
LVIS0
0
0
V
(4.3 V ±0.2 V)
LVI0
0
1
V
(4.1 V ±0.2 V)
LVI1
1
0
V
(3.9 V ±0.2 V)
LVI2
1
1
V
(3.7 V ±0.2 V)
LVI3
0
0
V
(3.5 V ±0.2 V)
LVI4
0
1
V
(3.3 V ±0.15 V)
LVI5
1
0
V
(3.1 V ±0.15 V)
LVI6
1
1
V
(2.85 V ±0.15 V)
LVI7
0
0
V
(2.6 V ±0.15 V)
LVI8
0
1
V
(2.35 V ±0.15 V)
LVI9
Setting prohibited
2
1
0
LVIS2
LVIS1
LVIS0
Detection level
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