Datasheet

78K0/Ix2 CHAPTER 13 COMPARATORS
R01UH0010EJ0500 Rev.5.00 410
Feb 28, 2012
Figure 13-1. Block Diagram of Comparators
+
_
INTCMP0
High-impedance
Output controller circuit
(TMX0, TMX1)
Edge detection
circuit
... ...
CMP0+/ANI4/P24
CMPCOM/ANI6/P26
Note
0
1
internal Comparison
voltage 1.58 V (TYP.)
AV SS
C0VRS4CVRE C0VRS3 C0VRS0C0VRS2 C0VRS1
DA0 internal reference voltage
selection register (C0RVM)
C0OE C0INV
C0MOD
SEL0
CMP0EN C0DFS1 C0DFS0
C0MOD
SEL1
Comparator 0 control register (C0CTL)
Comparator 0
+
_
INTCMP1
High impedance
Output controller circuit
(TMX0, TMX1)
Edge detection
circuit
CMP1+/ANI5/P25
0
1
C1OE C1INV
C1MOD
SEL0
CMP1EN C1DFS1 C1DFS0
C1MOD
SEL1
Comparator 1 control register (C1CTL)
Comparator 1
C1VRS4 C1VRS3 C1VRS0C1VRS2 C1VRS1
DA0
DA1
DA2
DA1 internal reference voltage
selection register (C1RVM)
C2VRS4 C2VRS3 C2VRS0C2VRS2 C2VRS1
DA2 internal reference voltage
selection register (C2RVM)
5
5
5
DA0
DA1
DA2
+
_
INTCMP2
High impedance
Output controller circuit
(TMX0, TMX1)
Edge detection
circuit
CMP2+/ANI3/P23
0
1
C2OE C2INV
C2MOD
SEL0
CMP2EN C2DFS1 C2DFS0
C2MOD
SEL1
Comparator 2 control register (C2CTL)
Comparator 2
DA0
DA1
DA2
EGN8 EGP8
EGN7 EGP7
EGN6 EGP6
External interrupt rising edge enable
register 0 (EGPCTL0) , External interrupt
falling edge enable register 0 (EGNCTL0)
External interrupt rising edge enable
register 0 (EGPCTL0), External interrupt
falling edge enable register 0 (EGNCTL0)
External interrupt rising edge enable
register 1 (EGPCTL1), External interrupt
falling edge enable register 1 (EGNCTL1)
CMP0
output
CMP1
output
CMP2
output
Interlock operation circuit
(TMX0, TMX1)
Interlock operation circuit
(TMX0, TMX1)
Interlock operation circuit
(TMX0, TMX1)
CMP0FCMP2F CMP1F
Comparator output flag
register (CMPFLG)
Noise filter
Noise filter
Noise filter
Selector
Selector
Selector
Selector
Note 78K0/IB2 only