r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 639

• 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 30.1
LVCMP1
LVCMP2
Table 30.2
LVREF
LVCOUT1
LVCOUT2
Pin Name
LVCMP1
LVCMP2
LVREF
Internal reference voltage
1
0
VCA22
VCA22
VCA23
VCA24
VCA13: Bit in VCA1 register
VCA21, VCA22, VCA23, VCA24, VCA26, VCA27: Bits in VCA2 register
VW1C0 to VW1C3, VW1F0, VW1F1: Bits in VW1C register
VW2C0, VW2C2, VW2F0, VW2F1: Bits in VW2C register
CM1POR, CM2POR, CM1OE, CM2OE, IRQ1SEL, IRQ2SEL: Bits in CMPA register
Comparator A Block Diagram
Pin Configuration of Comparator A
0
1
0
1
0
1
Shared with
voltage monitor 1
circuit
Shared with
voltage monitor 2
circuit
Output
Output
VCA26
VCA27
Input
Input
Input
+
+
-
-
I/O
fOCO-S/2
fOCO-S/4
fOCO-S/2
fOCO-S/8
fOCO-S/4
fOCO-S/8
fOCO-S
fOCO-S
VW1F1 to VW1F0
VW1C3
VCA13
VW2F1 to VW2F0
= 00b
= 01b
= 10b
= 11b
= 00b
= 01b
= 10b
= 11b
VW1C1
VW2C1
Comparator A1 analog pin
Comparator A1 comparison result output pin
Comparator A2 analog pin
Comparator A2 comparison result output pin
Comparator reference voltage pin
1
0
0
1
Digital filter
Digital filter
Sampling clock
Sampling clock
VW1C0
VW2C0
selection
selection
circuit
circuit
IRQ1SEL
IRQ2SEL
Edge
Edge
Function
VW1C2
VW2C2
CM1POR
Non-maskable
interrupts
Maskable
interrupts
CM2POR
Non-maskable
interrupts
Maskable
interrupts
selection circuit
Pin output
CM1OE
CM2OE
30. Comparator A
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1
0
1
0
LVCOUT2
LVCOUT1