ATmega64M1 Atmel Corporation, ATmega64M1 Datasheet - Page 249

• 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

21.10.10 AMP2CSR – Amplifier 2 Control and Status register
8209D–AVR–11/10
• Bit 3 – AMPCMP1: Amplifier 1 - Comparator 1 connection
Set this bit to connect the amplifier 1 to the comparator 1 positive input. In this configuration the
comparator clock is adapted to the amplifier clock and AMP1TS2,AMP1TS1, AMP1TS0 bits
have no effect.
Clear this bit to normally use the Amplifier 1.
• Bit 2:0 – AMP1TS[2:0]: Amplifier 1 Clock Source Selection Bits
In accordance with the
for the amplifier 1. This clock source is necessary to start the conversion on the amplified
channel.
Table 21-11. AMP1 Clock Source Selection
Bit
Read/Write
Initial Value
• Bit 7 – AMP2EN: Amplifier 2 Enable Bit
Set this bit to enable the Amplifier 2.
Clear this bit to disable the Amplifier 2.
Clearing this bit while a conversion is running will take effect at the end of the conversion.
Warning: Always clear AMP2TS0:1 when clearing AMP2EN.
• Bit 6 – AMP2IS: Amplifier 2 Input Shunt
Set this bit to short-circuit the Amplifier 2 input.
Clear this bit to normally use the Amplifier 2.
• Bit 5:4 – AMP2G[1:0]: Amplifier 2 Gain Selection Bits
These 2 bits determine the gain of the amplifier 2.
The different setting are shown in
AMP1TS[2:0]
000
001
010
011
100
101
110
111
AMP2EN
R/W
7
0
Table
AMP2IS
R/W
6
0
21-11, these 3 bits select the event which will generate the clock
AMP2G1
Table 21-12 on page
R/W
PSC Module 0 Synchronization Signal (PSS0)
PSC Module 1 Synchronization Signal (PSS1)
PSC Module 2 Synchronization Signal (PSS2)
5
0
Timer/Counter1 Compare Match B
Timer/Counter0 Compare Match
AMP2G0
R/W
4
0
Timer/Counter0 Overflow
Timer/Counter1 Overflow
ATmega16M1/32M1/64M1
Clock Source
AMPCMP2
ADC Clock/8
R/W
3
0
250.
AMP2TS2
R/W
2
0
AMP2TS1
R/W
1
0
AMP2TS0
R/W
0
0
AMP2CSR
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