r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 85

• 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 6.6
VW1C1 bit is set to 0
(digital filter enabled)
and
VCAC1 bit is set to 1
(both edges)
VW1C1 bit is set to 0
(digital filter enabled),
VCAC1 bit is set to 0
(one edge),
and
VW1C7 bit is set to 0
(when VCC reaches Vdet1
VW1C1 bit is set to 0
(digital filter enabled),
VCAC1 bit is set to 0
(one edge),
and
VW1C7 bit is set to 1
(when VCC reaches Vdet1
VW1C1 bit is set to 1
(digital filter disabled)
and
VCAC1 bit is set to 1
(both edges)
VW1C1 bit is set to 1
(digital filter disabled),
VCAC1 bit is set to 0
(one edge),
and
VW1C7 bit is set to 0
(when VCC reaches Vdet1
VW1C1 bit is set to 1
(digital filter disabled),
VCAC1 bit is set to 0
(one edge),
and
VW1C7 bit is set to 1
(when VCC reaches Vdet1
or above)
or below)
or above)
or below)
VW1C1, VW1C2, VW1C3, VW1C7: Bits in VW1C register
VCAC1: Bit in VCAC register
The above applies when:
Note:
• VCA26 bit in VCA2 register = 1 (voltage detection 1 circuit enabled)
• VW1C0 bit in VW1C register = 1 (voltage monitor 1 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 1 Interrupt
VW1C3 bit
VW1C2 bit
Voltage monitor 1
interrupt request
VW1C2 bit
Voltage monitor 1
interrupt request
VW1C2 bit
Voltage monitor 1
interrupt request
VW1C2 bit
Voltage monitor 1
interrupt request
VW1C2 bit
Voltage monitor 1
interrupt request
VW1C2 bit
Voltage monitor 1
interrupt request
1.8 V
Vdet1
(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 when an interrupt request
is acknowledged.
Set to 0 by a program.
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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