AT90PWM1-16MU Atmel, AT90PWM1-16MU Datasheet - Page 117
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AT90PWM1-16MU
Manufacturer Part Number
AT90PWM1-16MU
Description
IC AVR PWM 8KB FLASH 16MHZ 32QFN
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM1-16SU.pdf
(297 pages)
Specifications of AT90PWM1-16MU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
19
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
32-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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4378C–AVR–09/08
I/O pin it is connected to. However, note that the Data Direction Register (DDR) bit correspond-
ing to the OCnA or OCnB pin must be set in order to enable the output driver.
When the OCnA or OCnB is connected to the pin, the function of the COMnx1:0 bits is depen-
dent of the WGMn3:0 bits setting.
WGMn3:0 bits are set to a Normal or a CTC mode (non-PWM).
Table 29. Compare Output Mode, non-PWM
Table 30
mode.
Table 30. Compare Output Mode, Fast PWM
Note:
Table 31
rect or the phase and frequency correct, PWM mode.
Table 31. Compare Output Mode, Phase Correct and Phase and Frequency Correct PWM
COMnA1/COMnB1
COMnA1/COMnB1
COMnA1/COMnB1
1. A special case occurs when OCRnA/OCRnB equals TOP and COMnA1/COMnB1 is set. In
shows the COMnx1:0 bit functionality when the WGMn3:0 bits are set to the phase cor-
shows the COMnx1:0 bit functionality when the WGMn3:0 bits are set to the fast PWM
0
0
1
1
0
0
1
1
0
0
1
1
this case the compare match is ignored, but the set or clear is done at TOP.
Mode” on page 109.
COMnA0/COMnB0
COMnA0/COMnB0
COMnA0/COMnB0
for more details.
0
1
0
1
0
1
0
1
0
1
0
1
Table 29
(1)
Description
Normal port operation, OCnA/OCnB disconnected.
Toggle OCnA/OCnB on Compare Match.
Clear OCnA/OCnB on Compare Match (Set output to
low level).
Set OCnA/OCnB on Compare Match (Set output to
high level).
Description
Normal port operation, OCnA/OCnB disconnected.
WGMn3:0 = 14 or 15: Toggle OC1A on Compare
Match, OC1B disconnected (normal port operation).
For all other WGM1 settings, normal port operation,
OC1A/OC1B disconnected.
Clear OCnA/OCnB on Compare Match, set
OCnA/OCnB at TOP
Set OCnA/OCnB on Compare Match, clear
OCnA/OCnB at TOP
Description
Normal port operation, OCnA/OCnB disconnected.
WGMn3:0 = 8, 9 10 or 11: Toggle OCnA on Compare
Match, OCnB disconnected (normal port operation).
For all other WGM1 settings, normal port operation,
OC1A/OC1B disconnected.
Clear OCnA/OCnB on Compare Match when up-
counting. Set OCnA/OCnB on Compare Match when
downcounting.
Set OCnA/OCnB on Compare Match when up-
counting. Clear OCnA/OCnB on Compare Match
when downcounting.
shows the COMnx1:0 bit functionality when the
AT90PWM1
See “Fast PWM
(1)
117
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