C8051F336DK Silicon Laboratories Inc, C8051F336DK Datasheet - Page 48

• Manufacturer Part Number: C8051F336DK
• Description: DEV KIT FOR C8051F336
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F336DK

• Contents: Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
• Processor To Be Evaluated: C8051F33x
• Interface Type: USB, UART
• Operating Supply Voltage: 7 V to 15 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: C8051F336
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1430

C8051F336/7/8/9
7.4. ADC0 Analog Multiplexer (C8051F336/8 only)
ADC0 on the C8051F336/8 has two analog multiplexers, referred to collectively as AMUX0.
AMUX0 selects the positive and negative inputs to the ADC. Any of the following may be selected as the
positive input: Port I/O pins, the on-chip temperature sensor, or the positive power supply (V
following may be selected as the negative input: Port I/O pins, V
the negative input, ADC0 operates in Single-ended Mode; all other times, ADC0 operates in Differ-
ential Mode. The ADC0 input channels are selected in the AMX0P and AMX0N registers as described in
SFR Definition 7.9 and SFR Definition 7.10.
Important Note About ADC0 Input Configuration: Port pins selected as ADC0 inputs should be config-
ured as analog inputs, and should be skipped by the Digital Crossbar. To configure a Port pin for analog
input, set to ‘0’ the corresponding bit in register PnMDIN. To force the Crossbar to skip a Port pin, set to ‘1’
the corresponding bit in register PnSKIP. See
I/O configuration details.
48
Figure 7.8. ADC0 Multiplexer Block Diagram
Sensor
Temp
P2.3*
P2.3*
P0.0
P0.0
VREF
GND
VDD
*P2.0-P2.3 Only available as
inputs on QFN24 Packaging
Section “20. Port Input/Output” on page 119
Rev.1.0
AMUX
AMUX
AIN+
AIN-
REF
ADC0
AMX0P
AMX0N
, or GND. When GND is selected as
DD
for more Port
). Any of the