ATMEGA2561V ATMEL [ATMEL Corporation], ATMEGA2561V Datasheet - Page 158

• Manufacturer Part Number: ATMEGA2561V
• Description: 8-bit Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

158
ATmega640/1280/1281/2560/2561
BOTTOM+1 and so on. The same renaming applies for modes that set the TOVn Flag
at BOTTOM.
Figure 59. Timer/Counter Timing Diagram, no Prescaling
Figure 60 shows the same timing data, but with the prescaler enabled.
(PC and PFC PWM)
and ICFn
(CTC and FPWM)
TOVn
(Update at TOP)
TCNTn
TCNTn
OCRnx
(clk
as TOP)
clk
clk
I/O
(FPWM)
I/O
Tn
/1)
(if used
TOP - 1
TOP - 1
Old OCRnx Value
TOP
TOP
BOTTOM
TOP - 1
New OCRnx Value
BOTTOM + 1
2549K–AVR–01/07
TOP - 2