C8051F850-C-GM Datasheet, PDF (94/328 Pages) Silicon Laboratories – Low-Cost 8-bit MCU Family with up to 8 kB of Flash

14.1. ADC0 Analog Multiplexer
ADC0 on C8051F85x/86x has an analog multiplexer capable of selecting any pin on ports P0 and P1 (up
to 16 total), the on-chip temperature sensor, the internal regulated supply, the VDD supply, or GND. ADC0
input channels are selected using the ADC0MX register.
ADC0MX setting
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
10000
10001
10010
10011
10100-11111
Table 14.1. ADC0 Input Multiplexer Channels
Signal Name
ADC0.0
ADC0.1
QSOP24 Pin Name
P0.0
P0.1
QFN20 Pin Name
P0.0
P0.1
SOIC16 Pin Name
P0.0
P0.1
ADC0.2
ADC0.3
ADC0.4
ADC0.5
ADC0.6
P0.2
P0.3
P0.4
P0.5
P0.6
P0.2
P0.3
P0.4
P0.5
P0.6
P0.2
P0.3
P0.4
P0.5
P0.6
ADC0.7
ADC0.8
ADC0.9
ADC0.10
ADC0.11
ADC0.12
P0.7
P1.0
P1.1
P1.2
P1.3
P1.4
P0.7
P1.0
P1.1
P1.2
P1.3
P1.4
P0.7
P1.0
P1.1
P1.2
P1.3
Reserved
ADC0.13
ADC0.14
ADC0.15
Temp Sensor
LDO
VDD
P1.5
P1.6
P1.7
P1.5
P1.6
Reserved
Internal Temperature Sensor
Internal 1.8 V LDO Output
VDD Supply Pin
Reserved
Reserved
Reserved
GND
None
GND Supply Pin
No connection
80
Rev. 1.0