AT43USB355M-AC ATMEL [ATMEL Corporation], AT43USB355M-AC Datasheet - Page 63

• Manufacturer Part Number: AT43USB355M-AC
• Description: Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
• Manufacturer: ATMEL [ATMEL Corporation]

2603G–USB–04/06
ADC Multiplexer Select Register – ADMUX
• Bits 7..3 – Res: Reserved Bits
These bits are reserved bits in the AT43USB355 and always read as zero.
• Bits 3..0 – MUX3..MUX0: Analog Channel Select Bits 3-0
The value of these three bits selects which analog input ADC11..0 is connected to the ADC.
See Table 22 for details.
If these bits are changed during a conversion, the change will not go into effect until this con-
version is complete (ADIF in ADCSR is set).
Table 22. Input Channel Selections
Initial Value
Read/Write
$08 ($28)
Bit
R
7
–
0
MUX3.0
11XX
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
R
6
–
0
N/A
R
5
–
R
4
–
0
MUX3
R/W
3
0
MUX2
R/W
Single-ended Input
2
0
ADC10
ADC11
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
ADC7
ADC8
ADC9
ADC0
AT43USB355
MUX1
R/W
1
0
MUX0
R/W
0
0
ADMUX
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