AT90PWM2 datasheet(238/365 Pages) ATMEL

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238

AT90PWM2/3

4317B–AVR–02/05

These 2 bits determine the sensitivity of the interrupt trigger.

The different setting are shown in Table 92.

• Bit 2, 1, 0– AC0M2, AC0M1, AC0M0: Analog Comparator 0 Multiplexer register

These 3 bits determine the input of the negative input of the analog comparator.

The different setting are shown in Table 93.

Analog Comparator 1Control

• Bit 7– AC1EN: Analog Comparator 1 Enable Bit

Set this bit to enable the analog comparator 1.

Clear this bit to disable the analog comparator 1.

• Bit 6– AC1IE: Analog Comparator 1 Interrupt Enable bit

Set this bit to enable the analog comparator 1 interrupt.

Clear this bit to disable the analog comparator 1 interrupt.

• Bit 5, 4– AC1IS1, AC1IS0: Analog Comparator 1 Interrupt Select bit

Table 92. Interrupt sensitivity selection

AC0IS1

AC0IS0

Description

Comparator Interrupt on output toggle

Reserved

Comparator interrupt on output falling edge

Comparator interrupt on output rising edge

Table 93. Analog Comparator 0 negative input selection

AC0M2

AC0M1

AC0M0

Description

“Vref”/6.40

“Vref”/3.20

“Vref”/2.13

“Vref”/1.60

Analog Comparator Negative Input (ACMPM pin)

DAC result

Reserved

Bit

AC1EN

AC1IE

AC1IS1

AC1IS0

AC1ICE

AC1M2

AC1M1

AC1M0

AC1CON

Read/Write

R/W

Initial Value

AT90PWM2 Datasheet(PDF) 238 Page - ATMEL Corporation

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