at90pwm81-16se ATMEL Corporation, at90pwm81-16se Datasheet - Page 225

• Manufacturer Part Number: at90pwm81-16se
• Description: 8-bit Avr Microcontroller With 8k Bytes In- System Programmable Flash
• Manufacturer: ATMEL Corporation

7734M–AVR–03/10
These 2 bits determine the gain of the amplifier 0.
The different setting are shown in
Table 18-7.
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– AMP0GS: Amplifier 0 Ground Select of AMP0-
This bit select negative input of the amplifier:
Set this bit to ground the Amplifier 0 negative input.
Clear this bit to normally use the Amplifier 0 differential input.
• Bit 1, 0– AMP0TS1, AMP0TS0: Amplifier 0 Trigger Source Selection Bits
In accordance with the Table 18-8, these 2 bits select the event which will generate the trigger for the
amplifier 0. This trigger source is necessary to start the conversion on the amplified channel.
Table 18-8.
AMP0G1
0
0
1
1
AMP0TS1
0
0
1
1
Amplifier 0 Gain Selection
AMP0 Auto Trigger Source Selection
AMP0G0
0
1
0
1
AMP0TS0
0
1
0
1
Description
Gain 5
Gain 10
Gain 20
Gain 40
Table
Description
Auto synchronization on ADC Clock/8
Trig on PSCRASY
Trig on PSC2ASY
18-7.
AT90PWM81
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