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CMP1 & I/O status description:
The following table illustrates the CMP1 & I/O settings.
CMP1EN C1OUTEN CNPSEL C1NSEL
0
x
x
1
0
0
1
0
0
1
0
1
1
0
1
1
1
0
1
1
0
1
1
1
1
1
1
CMP2 & I/O status description:
The following table illustrates the CMP2 & I/O settings.
CMP2EN C2OUTEN CNPSEL C2PSEL
0
x
x
1
0
0
1
0
0
1
0
1
1
0
1
1
1
0
1
1
0
1
1
1
1
1
1
Comparators switch control:
The following table illustrates the relationship between comparators control register settings and the
switches:
CMP1,CMP2 Control Bits
CNPSEL
C2PSEL
C1NSEL
1
1
x
(Forced to 1)
(Forced to 1)
1
1
x
(Forced to 1)
(Forced to 1)
1
0
1
1
0
0
0
0
1
0
0
1
Rev. 1.40
TinyPower
Flash MCU with OPA & Comparators
TM
x
PC5 and PA0 and PA1 are I/Os
0
CNP is from OPA1 or OPA2 output, C1N is from VH0 input, PA1 is I/O
1
CNP is from OPA1 or OPA2 output, C1N is from PC5 input, PA1 is I/O
0
CNP is from PA0 input, C1N is from VH0 input, PA1 is I/O
1
CNP is from PA0 input, C1N is from PC5 input, PA1 is I/O
CNP is from OPA1 or OPA2 output, C1N is from VH0 input, PA1 is
0
comparator output
CNP is from OPA1 or OPA2 output, C1N is from PC5 input, PA1 is
1
comparator output
0
CNP is from PA0 input, C1N is from VH0 input, PA1 is comparator output
1
CNP is from PA0 input, C1N is from PC5 input, PA1 is comparator output
x
PC6 and PA0 and PA2 are I/Os
0
CNP is from OPA1 or OPA2 output, C2P is from VL0 input, PA2 is I/O
1
CNP is from OPA1 or OPA2 output, C2P is from PC6 input, PA2 is I/O
0
CNP is from PA0 input, C2P is from VL0 input, PA2 is I/O
1
CNP is from PA0 input, C2P is from PC6 input, PA2 is I/O
CNP is from OPA1 or OPA2 output, C2P is from VL0 input, PA2 is
0
comparator output
CNP is from OPA1 or OPA2 output, C2P is from PC6 input, PA2 is
1
comparator output
0
CNP is from PA0 input, C2P is from VL0 input, PA2 is comparator output
1
CNP is from PA0 input, C2P is from PC6 input, PA2 is comparator output
Switch Description
C1OFM C1RS SW1 SW2 SW3 S1A S2A S3A S7C S10D
ON
ON
1
1
x
CNP
C1N
ON
ON
1
0
x
OFF
CNP
C1N
0
x
ON
x
C1N
0
x
ON
x
VH
0
x
OFF
x
C1N
0
x
OFF
x
C1N
120
HT45F23A/HT45F24A
Description
Description
ON
OFF
ON
OFF OFF Input common mode=CNP
ON
ON
OFF OFF Input common mode=C1N
ON
ON
OFF OFF OFF Input = CNP, C1N
ON
ON
OFF OFF OFF Input = CNP, VH1
ON
ON
OFF
ON
OFF Input = A1E, C1N
ON
ON
OFF OFF
ON
Input = A2E, C1N
Results
Connections
March 29, 2019
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