atmega32u4-16mu ATMEL Corporation, atmega32u4-16mu Datasheet - Page 129

• Manufacturer Part Number: atmega32u4-16mu
• Description: Atmega32u4 8-bit Avr Microcontroller With 32k Bytes Of Isp Flash And Usb Controller
• Manufacturer: ATMEL Corporation

7766A–AVR–03/08
.
Table 14-1.
Table 14-2
PWM mode.
Table 14-2.
Note:
Table 14-3
correct and frequency correct PWM mode.
COMnA1/COMnB1/
COMnA1/COMnB1/
COMnC1
COMnC0
A special case occurs when OCRnA/OCRnB/OCRnC equals TOP and
COMnA1/COMnB1/COMnC1 is set. In this case the compare match is ignored, but the set or clear
is done at TOP.
0
0
1
1
0
0
1
1
shows the COMnx1:0 bit functionality when the WGMn3:0 bits are set to the phase
shows the COMnx1:0 bit functionality when the WGMn3:0 bits are set to the fast
Compare Output Mode, non-PWM
Compare Output Mode, Fast PWM
See “Fast PWM Mode” on page 95.
COMnA0/COMnB0/
COMnA0/COMnB0/
COMnC0
COMnC0
0
1
0
1
0
1
0
1
Description
Normal port operation, OCnA/OCnB/OCnC
disconnected.
Toggle OCnA/OCnB/OCnC on compare
match.
Clear OCnA/OCnB/OCnC on compare
match (set output to low level).
Set OCnA/OCnB/OCnC on compare match
(set output to high level).
Description
Normal port operation, OCnA/OCnB/OCnC
disconnected.
WGM13:0 = 14 or 15: Toggle OC1A on
Compare Match, OC1B and OC1C
disconnected (normal port operation). For all
other WGM1 settings, normal port operation,
OC1A/OC1B/OC1C disconnected.
Clear OCnA/OCnB/OCnC on compare
match, set OCnA/OCnB/OCnC at TOP
Set OCnA/OCnB/OCnC on compare match,
clear OCnA/OCnB/OCnC at TOP
for more details.
ATmega32U4
129