ATmega64M1 Atmel Corporation, ATmega64M1 Datasheet - Page 243

• Manufacturer Part Number: ATmega64M1
• Manufacturer: Atmel Corporation

Specifications of ATmega64M1

• Flash (kbytes): 64 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 27
• Ext Interrupts: 27
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 1
• Can: 1
• Lin: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 125
• Analog Comparators: 4
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 4
• Eeprom (bytes): 2048
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 14
• Input Capture Channels: 1
• Pwm Channels: 10
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

21.10.2
21.10.3
8209D–AVR–11/10
Bit 4:0 – MUX[4:0]: ADC Channel Selection Bits
ADCSRA – ADC Control and Status Register A
These 4 bits determine which analog inputs are connected to the ADC input. The different set-
ting are shown in
Table 21-5.
If these bits are changed during a conversion, the change will not take effect until this conversion
is complete (it means while the ADIF bit in ADCSRA register is set).
Bit
Read/Write
Initial Value
• Bit 7 – ADEN: ADC Enable Bit
Set this bit to enable the ADC.
Clear this bit to disable the ADC.
Clearing this bit while a conversion is running will take effect at the end of the conversion.
MUX[4:0]
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
10000
10001
10010
10011
101xx
1xxxx
ADC Input Channel Selection
ADEN
R/W
7
0
Table
21-5.
ADSC
R/W
6
0
ADATE
R/W
5
0
ADIF
R
4
0
ATmega16M1/32M1/64M1
AMP1 (- is ADC8, + is ADC9)
ADIE
R/W
3
0
AMP2 (- is ADC6)
Temp Sensor
Description
Reserved
Reserved
Reserved
Bandgap
ADC10
VCC/4
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
ADC7
ADC8
ADC9
AMP0
ISRC
GND
ADPS2
R/W
2
0
ADPS1
R/W
1
0
ADPS0
R/W
0
0
ADCSRA
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