ATMEGA16-16AU SL602 Atmel, ATMEGA16-16AU SL602 Datasheet - Page 129

• Manufacturer Part Number: ATMEGA16-16AU SL602
• Manufacturer: Atmel

2466T–AVR–07/10
When OC2 is connected to the pin, the function of the COM21:0 bits depends on the WGM21:0
bit setting.
normal or CTC mode (non-PWM).
Table 51. Compare Output Mode, non-PWM Mode
Table 52
mode.
Table 52. Compare Output Mode, Fast PWM Mode
Note:
Table 53
PWM mode
.
Table 53. Compare Output Mode, Phase Correct PWM Mode
Note:
COM21
COM21
COM21
0
0
1
1
0
0
1
1
0
0
1
1
1. A special case occurs when OCR2 equals TOP and COM21 is set. In this case, the compare
1. A special case occurs when OCR2 equals TOP and COM21 is set. In this case, the compare
shows the COM21:0 bit functionality when the WGM21:0 bits are set to phase correct
shows the COM21:0 bit functionality when the WGM21:0 bits are set to fast PWM
COM20
Table 51
match is ignored, but the set or clear is done at BOTTOM. See
for more details.
match is ignored, but the set or clear is done at TOP. See
124
0
1
0
1
for more details.
COM20
COM20
0
1
0
1
0
1
0
1
Description
Normal port operation, OC2 disconnected.
Reserved
Clear OC2 on compare match when up-counting. Set OC2 on compare
match when downcounting.
Set OC2 on compare match when up-counting. Clear OC2 on compare
match when downcounting.
shows the COM21:0 bit functionality when the WGM21:0 bits are set to a
Description
Normal port operation, OC2 disconnected.
Reserved
Clear OC2 on compare match, set OC2 at BOTTOM,
(non-inverting mode)
Set OC2 on compare match, clear OC2 at BOTTOM,
(inverting mode)
Description
Normal port operation, OC2 disconnected.
Toggle OC2 on compare match
Clear OC2 on compare match
Set OC2 on compare match
(1)
(1)
“Phase Correct PWM Mode” on page
“Fast PWM Mode” on page 123
ATmega16(L)
129