C8051F321-GMR Datasheet, PDF (47/250 Pages) Silicon Laboratories – Full Speed USB, 16 k ISP FLASH MCU Family

C8051F320/1
SFR Definition 5.2. AMX0N: AMUX0 Negative Channel Select
R
R
R
R/W
R/W
R/W
R/W
R/W
Reset Value
-
-
-
AMX0N4 AMX0N3 AMX0N2 AMX0N1 AMX0N0 00000000
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0 SFR Address:
0xBA
Bits7–5:
Bits4–0:
UNUSED. Read = 000b; Write = don’t care.
AMX0N4–0: AMUX0 Negative Input Selection.
Note that when GND is selected as the Negative Input, ADC0 operates in Single-ended
mode. For all other Negative Input selections, ADC0 operates in Differential mode.
AMX0N4–0
00000
00001
00010
ADC0 Negative Input
P1.0
P1.1
P1.2
00011
P1.3
00100
P1.4
00101
P1.5
00110
P1.6
00111
01000
01001
01010
01011
P1.7
P2.0
P2.1
P2.2
P2.3
01100*
P2.4*
01101*
P2.5*
01110*
P2.6*
01111*
P2.7*
10000
10001–11101
11110
11111
P3.0
RESERVED
VREF
GND (ADC in Single-Ended Mode)
*Note: Only applies to C8051F320; selection RESERVED on
C8051F321 devices.
Rev. 1.4
47