atmega32c1 ATMEL Corporation, atmega32c1 Datasheet - Page 254

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atmega32c1

Manufacturer Part Number
atmega32c1
Description
Atmega32m1 Automotive 8-bit Avr Microcontroller With 32k/64k Bytes In-system Programmable Flash
Manufacturer
ATMEL Corporation
Datasheet

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ATmega32/64/M1/C1
Table 18-12. Amplifier 2 Gain Selection
To ensure an accurate result, after the gain value has been changed, the amplifier input needs
to have a quite stable input value during at least 4 Amplifier synchronization clock periods.
• Bit 3 – AMPCMP2: Amplifier 2 - Comparator 2 connection
Set this bit to connect the amplifier 2 to the comparator 2 positive input. In this configuration the
comparator clock is adapted to the amplifier clock and AMP2TS2,AMP2TS1, AMP2TS0 bits
have no effect.
Clear this bit to normally use the Amplifier 2.
• Bit 2:0 – AMP2TS2,AMP2TS1, AMP2TS0: Amplifier 2 Clock Source Selection Bits
In accordance with the Table 18-13, these 3 bits select the event which will generate the clock
for the amplifier 1. This clock source is necessary to start the conversion on the amplified
channel.
Table 18-13. AMP1 Clock Source Selection
AMP2G1
0
1
1
AMP2TS2
0
0
0
0
1
1
1
1
AMP2TS1
0
0
1
1
0
0
1
1
AMP2G0
1
0
1
AMP2TS0
0
1
0
1
0
1
0
1
Description
Gain 10
Gain 20
Gain 40
Clock Source
ADC Clock/8
Timer/Counter0 Compare Match
Timer/Counter0 Overflow
Timer/Counter1 Compare Match B
Timer/Counter1 Overflow
PSC Module 0 Synchronization Signal (PSS0)
PSC Module 1 Synchronization Signal (PSS1)
PSC Module 2 Synchronization Signal (PSS2)
7647A–AVR–02/08

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