ATMEGA48V_11 ATMEL [ATMEL Corporation], ATMEGA48V_11 Datasheet - Page 131

• Manufacturer Part Number: ATMEGA48V_11
• Description: 8-bit Atmel Microcontroller with 4/8/16K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

2545T–AVR–05/11
Note:
Table 16-3
correct or the phase and frequency correct, PWM mode.
Table 16-3.
Note:
• Bit 1:0 – WGM11:0: Waveform generation mode
Combined with the WGM13:2 bits found in the TCCR1B Register, these bits control the counting
sequence of the counter, the source for maximum (TOP) counter value, and what type of wave-
form generation to be used, see
Timer/Counter unit are: Normal mode (counter), Clear Timer on Compare match (CTC) mode,
and three types of Pulse Width Modulation (PWM) modes.
119.).
COM1A1/COM1B1
1. A special case occurs when OCR1A/OCR1B equals TOP and COM1A1/COM1B1 is set. In
1. A special case occurs when OCR1A/OCR1B equals TOP and COM1A1/COM1B1 is set.
0
0
1
1
this case the compare match is ignored, but the set or clear is done at BOTTOM.
PWM mode” on page 121.
“Phase correct PWM mode” on page 123.
shows the COM1x1:0 bit functionality when the WGM13:0 bits are set to the phase
Compare output mode, phase correct and phase and frequency correct PWM
COM1A0/COM1B0
0
1
0
1
Table 16-4 on page
for more details.
Description
Normal port operation, OC1A/OC1B disconnected.
WGM13:0 = 9 or 11: Toggle OC1A on Compare
Match, OC1B disconnected (normal port operation).
For all other WGM1 settings, normal port operation,
OC1A/OC1B disconnected.
Clear OC1A/OC1B on Compare Match when up-
counting. Set OC1A/OC1B on Compare Match when
downcounting.
Set OC1A/OC1B on Compare Match when up-
counting. Clear OC1A/OC1B on Compare Match
when downcounting.
for more details.
132. Modes of operation supported by the
(See “Modes of operation” on page
ATmega48/88/168
See “Fast
See
(1)
131
.