r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 87

• Manufacturer Part Number: r5f21346mnfp
• Description: Single-chip Mcus Incorporates The R8c Cpu Core
• Manufacturer: Renesas Electronics Corporation.

R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
Figure 6.7
VW2C1 bit is set to 0
(digital filter enabled)
and
VCAC2 bit is set to 1
(both edges)
VW2C1 bit is set to 0
(digital filter enabled),
VCAC2 bit is set to 0
(one edge),
and
VW2C7 bit is set to 0
(when VCC or LVCMP2
reaches Vdet2 or above)
VW2C1 bit is set to 0
(digital filter enabled),
VCAC2 bit is set to 0
(one edge),
and
VW2C7 bit is set to 1
(when VCC or LVCMP2
reaches Vdet2 or below)
VW2C1 bit is set to 1
(digital filter disabled)
and
VCAC2 bit is set to 1
(both edges)
VW2C1 bit is set to 1
(digital filter disabled),
VCAC2 bit is set to 0
(one edge),
and
VW2C7 bit is set to 0
(when VCC or LVCMP2
reaches Vdet2 or above)
VW2C1 bit is set to 1
(digital filter disabled),
VCAC2 bit is set to 0
(one edge),
and
VW2C7 bit is set to 1
(when VCC or LVCMP2
reaches Vdet2 or below)
VCA13: Bit in VCA1 register
VW2C1, VW2C2, VW2C7: Bits in VW2C register
VCAC2: Bit in VCAC register
The above applies when:
Note:
• VCA27 bit in VCA2 register = 1 (voltage detection 2 circuit enabled)
• VW2C0 bit in VW2C register = 1 (voltage monitor 2 interrupt enabled)
1. If voltage monitor 0 reset is not used, set the power supply to VCC ≥ 1.8 V.
Operating Example of Voltage Monitor 2 Interrupt
VCA13 bit
VW2C2 bit
Voltage monitor 2
interrupt request
VW2C2 bit
Voltage monitor 2
interrupt request
VW2C2 bit
Voltage monitor 2
interrupt request
VW2C2 bit
Voltage monitor 2
interrupt request
VW2C2 bit
Voltage monitor 2
interrupt request
VW2C2 bit
Voltage monitor 2
interrupt request
1.8 V
Vdet2
(1)
VCC
Sampling clock of
digital filter × 2 cycles
Set to 0 when an interrupt request
is acknowledged.
Set to 0 when an interrupt request
is acknowledged.
Set to 0 by a program.
Set to 0 when an interrupt request
is acknowledged.
Set to 0 by a program.
Sampling clock of
digital filter × 2 cycles
Set to 0 by a program.
Set to 0 by a program.
6. Voltage Detection Circuit
Set to 0 when an interrupt request
is acknowledged.
Set to 0 when an interrupt request
is acknowledged.
Set to 0 when an interrupt request
is acknowledged.
Set to 0 by a program.
Set to 0 by a program.
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