attiny24v ATMEL Corporation, attiny24v Datasheet - Page 146

• Manufacturer Part Number: attiny24v
• Description: 8-bit Avr Microcontroller With 2/4/8k Bytes Insystem Programmable Flash
• Manufacturer: ATMEL Corporation

146
ATtiny24/44/84
done by first turning off the ADC, then changing multiplexer settings and then turn on the ADC.
Alternatively, the first conversion results after changing multiplexer settings should be discarded.
Table 16-4.
Notes:
See
tions of offset calibration channels. MUX0 bit works as a gain selection bit for differential
channels. When MUX0 is cleared (‘0’) 1x gain is selected and when it is set (‘1’) 20x gain is
selected. For normal differential channel pairs MUX5 bit work as a polarity reversal bit. Toggling
of the MUX5 bit exhanges the positive and negative channel other way a round.
Table 16-5.
Single Ended Input
ADC0 (PA0)
ADC1 (PA1)
ADC2 (PA2)
ADC3 (PA3)
ADC4 (PA4)
ADC5 (PA5)
ADC6 (PA6)
ADC7 (PA7)
Reserved for differential channels
0V (AGND)
1.1V (I Ref)
ADC8
Reserved for offset calibration
Reserved for reversal differential channels
Positive Differential Input
ADC0 (PA0)
ADC1 (PA1)
ADC2 (PA2)
Table 16-5
(2)
1. See
2. See
3. For offset calibration, only. See
Single-Ended Input channel Selections.
Differential Input channel Selections.
Table 16-5
“Temperature Measurement” on page
for details of selections of differential input channel selections as well as selec-
for details.
(3)
(1)
Negative Differential Input
ADC0 (PA0)
ADC1 (PA1)
ADC3 (PA3)
ADC0 (PA0)
ADC2 (PA2)
ADC3 (PA3)
ADC1 (PA1)
ADC3 (PA3)
(1)
Table 16-5 on page 146
(1)
144.
and
“Operation” on page
Gain 1x
001000
001010
101000
001100
001110
101100
010000
N/A
001000 - 011111
100011 - 100111
101000 - 111111
MUX5:0
MUX5:0
000000
000001
000010
000011
000100
000101
000110
000111
100000
100001
100010
8006H–AVR–10/09
Gain 20x
100011
001001
001011
101001
001101
001111
101101
010001
133.