C8051F321-GMR Datasheet, PDF (64/250 Pages) Silicon Laboratories – Full Speed USB, 16 k ISP FLASH MCU Family

C8051F320/1
SFR Definition 7.5. CPT1MX: Comparator1 MUX Selection
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset Value
-
-
CMX1N1 CMX1N0
-
-
CMX1P1 CMX1P0 00000000
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0 SFR Address:
0x9E
Bits7–6: UNUSED. Read = 00b, Write = don’t care.
Bits5–4: CMX1N1–CMX1N0: Comparator1 Negative Input MUX Select.
These bits select which Port pin is used as the Comparator1 negative input.
CMX1N1 CMX1N0
0
0
0
1
1
0
1
1
Negative Input
P1.3
P1.7
P2.3
P2.7*
Bits3–2: UNUSED. Read = 00b, Write = don’t care.
Bits1–0: CMX1P1–CMX1P0: Comparator1 Positive Input MUX Select.
These bits select which Port pin is used as the Comparator1 positive input.
CMX1P1 CMX1P0 Positive Input
0
0
P1.2
0
1
P1.6
1
0
P2.2
1
1
P2.6*
*Note: P2.6 and P2.7 available only on
C8051F320 devices; selection
reserved on C8051F321 devices.
64
Rev. 1.4