ATmega32U4 Atmel Corporation, ATmega32U4 Datasheet - Page 147

• Manufacturer Part Number: ATmega32U4
• Manufacturer: Atmel Corporation

Specifications of ATmega32U4

• Flash (kbytes): 32 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 14
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 26
• Ext Interrupts: 13
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 3.3
• Eeprom (bytes): 1024
• 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: 4
• Output Compare Channels: 12
• Input Capture Channels: 2
• Pwm Channels: 8
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

15.6.1
7766F–AVR–11/10
Compare Output Mode and Waveform Generation
Figure 15-9. Compare Match Output Unit, Schematic
The Waveform Generator uses the COM4x1:0 bits differently in Normal mode and PWM modes.
For all modes, setting the COM4x1:0 = 0 tells the Waveform Generator that no action on the
OCW4x Output is to be performed on the next Compare Match. For compare output actions in
the non-PWM modes refer to
on page
A change of the COM4x1:0 bits state will have effect at the first Compare Match after the bits are
written. For non-PWM modes, the action can be forced to have immediate effect by using the
FOC4x strobe bits.
clk I/O
162, and for the Phase and Frequency Correct PWM refer to
PORTC6
DDRC6
PORTC7
DDRC7
PORTB5
DDRB5
PORTB6
DDRB6
PORTD6
DDRD6
PORTD7
DDRD7
D Q
D Q
D Q
D Q
D Q
D Q
D Q
D Q
D Q
D Q
D Q
D Q
OCW4A
clk Tn
OCW4B
OCW4D
clk Tn
clk Tn
Table 15-6 on page
Generator A
Generator B
Generator D
Dead Time
Dead Time
Dead Time
COM4A1:0
WGM41
OC4OE1:0
WGM41
OC4OE3:2
COM4B1:0
WGM41
OC4OE5:4
COM4D1:0
Q
Q
Q
Q
Q
Q
OC4B
OC4B
OC4A
OC4
OC4D
OC4A
162. For fast PWM mode, refer to
0
1
Output Compare
Pin Configuration
2
1
0
2
1
0
Output Compare
Pin Configuration
Output Compare
Pin Configuration
ATmega16/32U4
1
0
1
0
Table 15-8 on page
1
0
1
0
1
0
1
0
1
0
1
0
Table 15-7
OC4A
OC4A
OC4B
OC4D
OC4B
OC4D
PIN
PIN
PIN
PIN
PIN
PIN
163.
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