R01UH0823EJ0100 Rev.1.00 Page 161 of 1823
Jul 31, 2019
RX23W Group 8. Voltage Detection Circuit (LVDAb)
8.2.4 Voltage Detection Level Select Register (LVDLVLR)
Note: Set the PRCR.PRC3 bit to 1 (write enabled) before rewriting this register.
When changing the LVDLVLR register, first set the LVCMPCR.LVD1E bit to 0 (voltage detection 1 circuit disabled).
For details on the voltage detection level range, refer to
section 51, Electrical Characteristics.
Address(es): 0008 C298h
b7 b6 b5 b4 b3 b2 b1 b0
———— LVD1LVL[3:0]
Value after reset:
00000111
Bit Symbol Bit Name Description R/W
b3 to b0 LVD1LVL[3:0] Voltage Detection 1 Level Select
(Standard voltage during drop in voltage)
b3 b0
0 1 0 0: 3.10 V
0 1 0 1: 3.00 V
0 1 1 0: 2.90 V
0 1 1 1: 2.79 V
1 0 0 0: 2.68 V
1 0 0 1: 2.58 V
1 0 1 0: 2.48 V
1 0 1 1: 2.20 V
1 1 0 0: 1.96 V
1 1 0 1: 1.86 V
Settings other than those listed above are prohibited.
R/W
b7 to b4
—
Reserved These bits are read as 0. The write value should be 0. R/W
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