AT90PWM1-16MU Atmel, AT90PWM1-16MU Datasheet - Page 116
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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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15.10 16-bit Timer/Counter Register Description
15.10.1
116
AT90PWM1
Timer/Counter1 Control Register A – TCCR1A
Figure 15-12. Timer/Counter Timing Diagram, no Prescaling
Figure 15-13
Figure 15-13. Timer/Counter Timing Diagram, with Prescaler (f
• Bit 7:6 – COMnA1:0: Compare Output Mode for Channel A
• Bit 5:4 – COMnB1:0: Compare Output Mode for Channel B
The COMnA1:0 and COMnB1:0 control the Output Compare pins (OCnA and OCnB respec-
tively) behavior. If one or both of the COMnA1:0 bits are written to one, the OCnA output
overrides the normal port functionality of the I/O pin it is connected to. If one or both of the
COMnB1:0 bit are written to one, the OCnB output overrides the normal port functionality of the
Bit
Read/Write
Initial Value
and ICF n
(PC and PFC PWM)
and ICFn
(CTC and FPWM)
TOVn
(Update at TOP)
(PC and PFC PWM)
TOVn
(CTC and FPWM)
(Update at TOP)
TCNTn
TCNTn
OCRnx
as TOP)
(clk
TCNTn
TCNTn
OCRnx
(clk
as TOP)
clk
clk
clk
clk
I/O
(FPWM)
I/O
shows the same timing data, but with the prescaler enabled.
(FPWM)
I/O
Tn
I/O
Tn
/8)
COM1A1
(if used
/1)
(if used
R/W
7
0
COM1A0
R/W
6
0
TOP - 1
TOP - 1
TOP - 1
TOP - 1
Old OCRnx Value
Old OCRnx Value
COM1B1
R/W
5
0
COM1B0
R/W
4
0
TOP
TOP
TOP
TOP
R
3
–
0
BOTTOM
BOTTOM
TOP - 1
TOP - 1
clk_I/O
R
2
–
0
New OCRnx Value
New OCRnx Value
/8)
WGM11
R/W
1
0
BOTTOM + 1
BOTTOM + 1
TOP - 2
TOP - 2
WGM10
R/W
0
0
4378C–AVR–09/08
TCCR1A
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