Sfr definition 7.2 an, Sfr definition 7.2). th – Silicon Laboratories C8051F347 User Manual
Page 63
Rev. 1.3
63
C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
SFR Definition 7.2. CPT0MX: Comparator0 MUX Selection
Bit7:
UNUSED. Read = 0b, Write = don’t care.
Bits6–4: CMX0N2–CMX0N0: Comparator0 Negative Input MUX Select.
These bits select which Port pin is used as the Comparator0 negative input.
Bit3:
UNUSED. Read = 0b, Write = don’t care.
Bits2–0: CMX0P2–CMX0P0: Comparator0 Positive Input MUX Select.
These bits select which Port pin is used as the Comparator0 positive input.
Note that the port pins used by the comparator depend on the package type (32-pin or 48-pin).
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset Value
-
CMX0N2
CMX0N1
CMX0N0
-
CMX0P2
CMX0P1
CMX0P0
00000000
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
SFR Address:
0x9F
CMX0N1 CMX0N1 CMX0N0
Negative Input
(32-pin Package)
Negative Input
(48-pin Package)
0
0
0
P1.1
P2.1
0
0
1
P1.5
P2.6
0
1
0
P2.1
P3.5
0
1
1
P2.5
P4.4
1
0
0
P0.1
P0.4
CMX0P1 CMX0P1 CMX0P0
Positive Input
(32-pin Package)
Positive Input
(48-pin Package)
0
0
0
P1.0
P2.0
0
0
1
P1.4
P2.5
0
1
0
P2.0
P3.4
0
1
1
P2.4
P4.3
1
0
0
P0.0
P0.3