r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 651
r5f21346mnfp
Manufacturer Part Number
r5f21346mnfp
Description
Single-chip Mcus Incorporates The R8c Cpu Core
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5F21346MNFP.pdf
(776 pages)
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R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
Figure 30.4
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 LVCMP2 reaches
reference voltage 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 LVCMP2 reaches
reference voltage or below)
VCA13: Bit in VCA1 register
VW2C1, VW2C2, VW2C7: Bits in VW2C register
VCAC2: Bit in VCAC register
CM2POR, IRQ2SEL: Bits in CMPA register
The above applies when:
• VCA27 bit in VCA2 register = 1 (comparator A2 circuit enabled)
• VW2C0 bit in VW2C register = 1 (comparator A2 interrupt enabled)
• CM2OE bit in CMPA register = 1 (output enabled)
• VCA24 bit in VCA2 register = 1 (LVCMP2 pin input voltage)
• COMPSEL bit in CMPA register = 1 (bits IRQ1SEL and IRQ2SEL enabled)
Comparator A2 Operating Example (Digital Filter Enabled)
Reference voltage
VCA13 bit
VW2C2 bit
IR bit in
VCMP2IC register
(IRQ2SEL = 1)
LVCOUT2 output
(CM2POR = 0)
VW2C2 bit
IR bit in
VCMP2IC register
(IRQ2SEL = 1)
LVCOUT2 output
(CM2POR = 0)
VW2C2 bit
IR bit in
VCMP2IC register
(IRQ2SEL = 1)
LVCOUT2 output
(CM2POR = 1)
(LVREF)
LVCMP2
Sampling clock of
digital filter × 2 cycles
Set to 0 when an interrupt request
is acknowledged or by a program.
Set to 0 when an interrupt request
is acknowledged or by a program.
Set to 0 when an interrupt request
is acknowledged or 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.
30. Comparator A
Page 619 of 740
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