ATMEGA64M1-AU Atmel, ATMEGA64M1-AU Datasheet - Page 259

• Manufacturer Part Number: ATMEGA64M1-AU
• Description: IC MCU AVR 64K FLASH 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64M1-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: CAN, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Lead Free Status / Rohs Status: Details

23.4.4
8209D–AVR–11/10
AC3CON – Analog Comparator 3 Control Register
Table 23-5.
• Bit 3 – Res: Reserved
This bit is reserved and will always read as zero.
• Bit 2:0– AC2M[2:0]: Analog Comparator 2 Multiplexer register
These 3 bits determine the input of the negative input of the analog comparator.
The different setting are shown in
Table 23-6.
Bit
Read/Write
Initial Value
• Bit 7– AC3EN: Analog Comparator 3 Enable Bit
Set this bit to enable the analog comparator 3.
Clear this bit to disable the analog comparator 3.
• Bit 6– AC3IE: Analog Comparator 3 Interrupt Enable bit
Set this bit to enable the analog comparator 3 interrupt.
Clear this bit to disable the analog comparator 3 interrupt.
• Bit 5:4– AC3IS[1:0]: Analog Comparator 3 Interrupt Select bit
These 2 bits determine the sensitivity of the interrupt trigger.
The different setting are shown in
AC2IS[1:0]
AC2M[2:0]
00
01
10
11
000
001
010
011
100
101
110
111
Interrupt sensitivity selection
Analog Comparator 2 negative input selection
AC3EN
R/W
7
0
AC3IE
R/W
6
0
AC3IS1
Table
Table 23-7 on page
R/W
Analog Comparator Negative Input (ACMPM pin)
5
0
Comparator interrupt on output falling edge
Comparator interrupt on output rising edge
Comparator Interrupt on output toggle
23-6.
AC3IS0
R/W
4
0
ATmega16M1/32M1/64M1
Description
Bandgap (1.1V)
Reserved
Description
“Vref”/6.40
“Vref”/3.20
“Vref”/2.13
“Vref”/1.60
DAC result
Reserved
3
0
-
-
260.
AC3M2
R/W
2
0
AC3M1
R/W
1
0
AC3M0
R/W
0
0
AC3CON
259