RL78/F13, F14 CHAPTER 29 OPTION BYTE
R01UH0368EJ0210 Rev.2.10 1619
Dec 10, 2015
Figure 29-2. Format of User Option Byte (000C1H/020C1H) (2/2)
Address: 000C1H/020C1H
Note 1
After reset: (user setting value
Note 2
)
7 6 5 4 3 2 1 0
VPOC2 VPOC1 VPOC0 CLKMB LVIS1 LVIS0 LVIMDS1 LVIMDS0
LVD setting (interrupt mode)
Detection voltage Option byte Setting Value
VLVD
VPOC2
VPOC1
VPOC0 CLKMB LVIS1 LVIS0 LVIMDS1 LVIMDS0
Rising edge Falling edge
2.81 V 2.75 V
0 1 1
Note 3
1 1 0 1
3.02 V 2.96 V
0 0 0
Note 3
0 1
3.22 V 3.15 V
0 1 1
Note 3
0 1
4.42 V 4.32 V
0 0 1
Note 3
0 0
4.62 V 4.52 V
0 1 0
Note 3
0 0
4.74 V 4.64 V
0 1 1
Note 3
0 0
Other than above Setting prohibited
LVD setting (LVD off)
Detection voltage Option byte Setting Value
VLVD
VPOC2
VPOC1
VPOC0 CLKMB LVIS1 LVIS0
Mode setting
Rising edge Falling edge LVIMDS1 LVIMDS0
1
Note 3
1
Other than above Setting prohibited
Setting of clock monitor operation
CLKMB Control of clock monitor operation
0 Operation is enabled.
1 Operation is stopped.
Notes 1. Set the same value as 000C1H to 020C1H when the boot swap operation is used because 000C1H is
replaced by 020C1H.
2. The setting at shipment of the user option byte is FFH.
3. Write the setting value of the clock monitor bit (CLKMB).
Remarks 1. : don’t care
2. For details of the LVD, see 26.1 Functions of Voltage Detector.
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