AT90PWM2B-16SE ATMEL [ATMEL Corporation], AT90PWM2B-16SE Datasheet - Page 228

• Manufacturer Part Number: AT90PWM2B-16SE
• Description: 8-bit Microcontroller with 8K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

20.2.2
228
AT90PWM2/3/2B/3B
Analog Comparator 1Control Register – AC1CON
These 2 bits determine the sensitivity of the interrupt trigger.
The different setting are shown in
Table 20-1.
• 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 20-2.
Bit
Read/Write
Initial Value
• 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
AC0IS1
0
0
1
1
AC0M2
0
0
0
0
1
1
1
1
Interrupt sensitivity selection
Analog Comparator 0 negative input selection
AC0IS0
0
1
0
1
AC0M1
0
0
1
1
0
0
1
1
AC1EN
R/W
7
0
AC1IE
R/W
6
0
Description
Comparator Interrupt on output toggle
Reserved
Comparator interrupt on output falling edge
Comparator interrupt on output rising edge
AC0M0
0
1
0
1
0
1
0
1
AC1IS1
Table
Table
R/W
5
0
20-1.
20-2.
AC1IS0
Description
“Vref”/6.40
“Vref”/3.20
“Vref”/2.13
“Vref”/1.60
Analog Comparator Negative Input (ACMPM pin)
DAC result
Reserved
Reserved
R/W
4
0
AC1ICE
R/W
3
0
AC1M2
R/W
2
0
AC1M1
R/W
1
0
AC1M0
R/W
0
0
4317J–AVR–08/10
AC1CON