C8051F709-GQR Silicon Labs, C8051F709-GQR Datasheet - Page 79

• Manufacturer Part Number: C8051F709-GQR
• Description: 8-bit Microcontrollers - MCU 8kB 32B EEPROM Cap Sense
• Manufacturer: Silicon Labs

Specifications of C8051F709-GQR

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit

SFR Definition 14.3. CPT0MX: Comparator0 MUX Selection
SFR Address = 0x9F; SFR Page = 0
Note: On 32 and 24-pin devices, P2.0 can be used as the negative comparator input, for detecting low-level signals
Name
Reset
Bit
6:4 CMX0N[2:0] Comparator0 Negative Input MUX Selection.
2:0
Type
7
3
Bit
CMX0P[2:0] Comparator0 Positive Input MUX Selection.
near the GND or VDD supply rails. The P1.6 setting for the positive input should be used in conjunction with
the selection of P2.0 as the negative input. P1.6 should be configured for push-pull mode and driven to the
desired supply rail. Although P1.6 is not connected to a device pin in these packages, it is still a valid signal
internally.
Unused
Unused
Name
R
7
0
Read = 0b; Write = don’t care.
Read = 0b; Write = don’t care.
100-111
100-111
000
001
010
011
000
001
010
011
6
0
64-Pin Devices
64-Pin Devices
CMX0N[2:0]
selected.
selected.
No input
No input
R/W
P1.1
P1.3
P1.5
P1.7
P1.0
P1.2
P1.4
P1.6
5
0
Rev. 1.0
4
0
48-Pin Devices
48-Pin Devices
selected.
selected.
No input
No input
P1.1
P1.3
P1.0
P1.2
—
—
—
—
Function
R
3
0
(P1.6—see note) (P1.6—see note)
32-Pin Devices
32-Pin Devices
P2.0 (see note)
selected.
selected.
C8051F70x/71x
No input
No input
2
0
—
—
—
—
—
—
CMX0P[2:0]
R/W
1
0
24-Pin Devices
24-Pin Devices
P2.0 (see note)
selected.
selected.
No input
No input
—
—
—
—
—
—
0
0
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