Datasheet

Section 26 Low-Voltage Detection Circuits
REJ09B0465-0300 Rev. 3.00 Page 859 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
26.2.1 Low-Voltage Detection Circuit Control Protect Register (VDCPR)
Address:
Bit:
Value after reset:
7
WRI
1
6
⎯
0
5
⎯
0
4
⎯
0
3
⎯
0
2
⎯
0
1
⎯
0
0
LDPRC
0
H'FF0628
Bit Symbol Bit Name Description R/W
7 WRI VDCPR write disable 0: Writing to the VDCPR bit is enabled.
1: Writing to the VDCPR bit is disabled.
W
6 to 1 ⎯ Reserved These bits are read as 0. The write value should
always be 0.
⎯
0 LDPRC Low-voltage detection
circuit control register
write enable
0: Writing to each low-voltage detection circuit
control register is disabled.
1: Writing to each low-voltage detection circuit
control register is enabled.
R/W
Note: Use a MOV instruction to modify this register.
• WRI bit (VDCPR write disable)
Only when this bit is written to 0, writing to this register is enabled. This bit is always read as
1.
• LDPRC bit (Low-voltage detection circuit control register write enable)
Only when the value of this bit is 1, writing to the low-voltage detection circuit control register
(LD2CRH, LD2CRL, LD1CRH, LD1CRL, LD0CRH and LD0CRL) is enabled.