ATmega168PA Automotive Atmel Corporation, ATmega168PA Automotive Datasheet - Page 134
ATmega168PA Automotive
Manufacturer Part Number
ATmega168PA Automotive
Description
Manufacturer
Atmel Corporation
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Atmel ATmega48PA/88PA/168PA [Preliminary]
Table 16-3
correct or the phase and frequency correct, PWM mode.
Table 16-3.
• Bit 1:0 – WGM11:0: Waveform Generation Mode
Combined with the WGM13:2 bits found in the TCCR1B Register, these bits control the count-
ing sequence of the counter, the source for maximum (TOP) counter value, and what type of
waveform 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.
123.).
Note:
COM1A1/COM1B1
1. A special case occurs when OCR1A/OCR1B equals TOP and COM1A1/COM1B1 is set.
0
0
1
1
shows the COM1x1:0 bit functionality when the WGM13:0 bits are set to the phase
See “Phase Correct PWM Mode” on page 127.
Compare Output Mode, Phase Correct and Phase and Frequency Correct
PWM
(1)
COM1A0/COM1B0
0
1
0
1
Table
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.
16-4. Modes of operation supported by the
for more details.
(See “Modes of Operation” on page
9223B–AVR–09/11
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