atmega32u4-16mu ATMEL Corporation, atmega32u4-16mu Datasheet - Page 331

• Manufacturer Part Number: atmega32u4-16mu
• Description: Atmega32u4 8-bit Avr Microcontroller With 32k Bytes Of Isp Flash And Usb Controller
• Manufacturer: ATMEL Corporation

25.9.5
25.9.6
7766A–AVR–03/08
Digital Input Disable Register 0 – DIDR0
Digital Input Disable Register 2 – DIDR2
Table 25-6.
• Bit 7:4, 1:0 – ADC7D..4D - ADC1D..0D : ADC7:4 - ADC1:0 Digital Input Disable
When this bit is written logic one, the digital input buffer on the corresponding ADC pin is dis-
abled. The corresponding PIN Register bit will always read as zero when this bit is set. When an
analog signal is applied to the ADC7..4 / ADC1..0 pin and the digital input from this pin is not
needed, this bit should be written logic one to reduce power consumption in the digital input
buffer.
• Bit 5:0 – ADC13D..ADC8D: ADC13:8 Digital Input Disable
When this bit is written logic one, the digital input buffer on the corresponding ADC pin is dis-
abled. The corresponding PIN Register bit will always read as zero when this bit is set. When an
analog signal is applied to the ADC13..8 pin and the digital input from this pin is not needed, this
bit should be written logic one to reduce power consumption in the digital input buffer.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
ADTS3
1
1
1
ADC7D
ADC Auto Trigger Source Selections
R/W
R/W
7
0
7
0
-
ADTS2
ADC6D
0
0
0
R/W
R/W
6
0
6
0
-
ADC13D
ADC5D
R/W
R/W
5
0
5
0
ADTS1
0
1
1
ADC12D
ADC4D
R/W
R/W
4
0
4
0
ADC11D
R/W
R/W
3
0
3
0
ADTS0
-
1
0
1
ADC10D
R/W
R/W
2
0
2
0
-
Timer/Counter4 Compare Match A
Timer/Counter4 Compare Match B
Timer/Counter4 Compare Match D
Trigger Source
ADC1D
ADC9D
R/W
R/W
1
0
1
0
ATmega32U4
ADC0D
ADC8D
R/W
R/W
0
0
0
0
DIDR0
DIDR2
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