R01UH0136EJ0210 Rev.2.10
Page 67 of 800
Jul 31, 2012
M16C/64A Group
7. Voltage Detector
7.2.5
Voltage Monitor 0 Control Register (VW0C)
Set the PRC3 bit in the PRCR register to 1 (write enabled) before rewriting to this register.
This register does not change at voltage monitor 1 reset, voltage monitor 2 reset, oscillator stop detect
reset, watchdog timer reset, or software reset.
VW0C0 (Voltage monitor 0 reset enable bit) (b0)
The VW0C0 bit is enabled when the VC25 bit in the VCR2 register is 1 (voltage detector 0 enabled).
Set the VW0C0 bit to 0 (disabled) when the VC25 bit is 0 (voltage detector 0 disabled).
Bit 6
When the LVDAS bit in the OFS1 address is 1, this bit becomes 0 after hardware reset. When using
voltage monitor 0 reset, set this bit to 1.
b7
1
1
0
0
0
1
b6 b5 b4
b1
b2
b3
Voltage Monitor 0 Control Register
Symbol
VW0C
Address
002Ah
Bit Symbol
Bit Name
RW
Reset Value
1000 XX10b
(1)
1100 XX11b
(2)
b0
Function
RW
Notes:
1. This is the reset value when the LVDAS bit of address OFS1 is 1 during hardware reset.
2. This is the reset value after voltage monitor 0 reset, power-on reset, and when the LVDAS bit of address OFS1 is 0
during hardware reset.
—
(b2)
Reserved bit
Set to 0.
When read, the read value is undefined.
—
(b3)
Reserved bit
When read, the read value is undefined.
Reserved bits
Set to 1
—
(b7-b6)
RO
RW
VW0C0
RW
Voltage monitor 0 reset
enable bit
0 : Disabled
1 : Enabled
—
(b1)
RW
Reserved bit
Set to 1.
Reserved bits
Set to 0
—
(b5-b4)
RW
Содержание M16C/60 Series
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