r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 649

• 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 30.3
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 LVCMP1 reaches
reference voltage or above)
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 LVCMP1 reaches
reference voltage or below)
VW1C1, VW1C2, VW1C3, VW1C7: Bits in VW1C register
VCAC1: Bit in VCAC register
CM1POR, IRQ1SEL: Bits in CMPA register
Comparator A1 Operating Example (Digital Filter Disabled)
The above applies under when:
• VCA26 bit in VCA2 register = 1 (comparator A1 circuit enabled)
• VW1C0 bit in VW1C register = 1 (comparator A1 interrupt enabled)
• CM1OE bit in CMPA register = 1 (output enabled)
• VCA22 bit in VCA2 register = 1 (LVCMP1 pin input voltage)
• COMPSEL bit in CMPA register = 1 (bits IRQ1SEL and IRQ2SEL enabled)
Reference voltage
VW1C3 bit
VW1C2 bit
IR bit in
VCMP1IC register
(IRQ1SEL = 1)
LVCOUT1 output
(CM1POR = 0)
VW1C2 bit
IR bit in
VCMP1IC register
(IRQ1SEL = 1)
LVCOUT1 output
(CM1POR = 0)
VW1C2 bit
IR bit in
VCMP1IC register
(IRQ1SEL = 1)
LVCOUT1 output
(CM1POR = 1)
(LVREF)
LVCMP1
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.
Set to 0 by a program.
Set to 0 by a program.
30. Comparator A
Page 617 of 740