ATMEGA48V_11 ATMEL [ATMEL Corporation], ATMEGA48V_11 Datasheet - Page 128
ATMEGA48V_11
Manufacturer Part Number
ATMEGA48V_11
Description
8-bit Atmel Microcontroller with 4/8/16K Bytes In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATMEGA48V_11.pdf
(377 pages)
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2545T–AVR–05/11
Figure 16-11. Timer/counter timing diagram, setting of OCF1x, with prescaler (f
Figure 16-12
frequency correct PWM mode the OCR1x Register is updated at BOTTOM. The timing diagrams
will be the same, but TOP should be replaced by BOTTOM, TOP-1 by BOTTOM+1 and so on.
The same renaming applies for modes that set the TOV1 Flag at BOTTOM.
Figure 16-12. Timer/counter timing diagram, no prescaling.
(PC and PFC PWM)
and ICFn
(CTC and FPWM)
TCNTn
OCRnx
OCFnx
(clk
TOVn
(update at TOP)
clk
clk
I/O
TCNTn
TCNTn
OCRnx
as TOP)
(clk
I/O
Tn
clk
clk
/8)
I/O
shows the count sequence close to TOP in various modes. When using phase and
(FPWM)
I/O
Tn
/1)
(if used
OCRnx - 1
TOP - 1
TOP - 1
Old OCRnx value
OCRnx
OCRnx value
TOP
TOP
OCRnx + 1
ATmega48/88/168
BOTTOM
TOP - 1
New OCRnx value
OCRnx + 2
BOTTOM + 1
TOP - 2
clk_I/O
/8).
128
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