AT90PWM2B-16SU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT90PWM2B-16SU

8-bit Atmel Microcontroller with 8K Bytes In-System Programmable Flash

Atmel Corporation 

4317K–AVR–03/2013

AT90PWM2/3/2B/3B

In accordance with the Table 21-6, these 3 bits select the interrupt event which will generate the

trigger of the start of conversion. The start of conversion will be generated by the rising edge of

the selected interrupt flag whether the interrupt is enabled or not. In case of trig on PSCnASY

event, there is no flag. So in this case a conversion will start each time the trig event appears

and the previous conversion is completed

Table 21-6. ADC Auto Trigger Source Selection for non amplified conversions

ADTS3

ADTS2

ADTS1

ADTS0

Description

0

0

0

0

Free Running Mode

0

0

0

1

Analog Comparator 0

0

0

1

0

External Interrupt Request 0

0

0

1

1

Timer/Counter0 Compare Match

0

1

0

0

Timer/Counter0 Overflow

0

1

0

1

Timer/Counter1 Compare Match B

0

1

1

0

Timer/Counter1 Overflow

0

1

1

1

Timer/Counter1 Capture Event

1

0

0

0

PSC0ASY Event (1)

1

0

0

1

PSC1ASY Event(1)

1

0

1

0

PSC2ASY Event(1)

1

0

1

1

Analog comparator 1

1

1

0

0

Analog comparator 2

1

1

0

1

Reserved

1

1

1

0

Reserved

1

1

1

1

Reserved

1.

For trigger on any PSC event, if the PSC uses the PLL clock, the core must use PLL/4 clock

source.

Table 21-7.

ADTS3

0

0

0

0

0

0

0

0

1

1

ADC Auto Trigger Source Selection for amplified conversions

ADTS2

ADTS1

ADTS0

Description

0

0

0

Free Running Mode

0

0

1

Reserved

0

1

0

Reserved

0

1

1

Reserved

1

0

0

Reserved

1

0

1

Reserved

1

1

0

Reserved

1

1

1

Reserved

0

0

0

PSC0ASY Event (1)

0

0

1

PSC1ASY Event(1)

250

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