atmega32u4-16mu ATMEL Corporation, atmega32u4-16mu Datasheet - Page 175

• Manufacturer Part Number: atmega32u4-16mu
• Description: Atmega32u4 8-bit Avr Microcontroller With 32k Bytes Of Isp Flash And Usb Controller
• Manufacturer: ATMEL Corporation

16.9
7766A–AVR–03/08
Timer/Counter Timing Diagrams
Table 16-5.
The Timer/Counter is a synchronous design and the timer clock (clk
clock enable signal in the following figures. The figures include information on when Interrupt
Flags are set.
Figure 16-16
sequence close to the MAX value in all modes other than Phase and Frequency Correct PWM
Mode.
other than Phase and Frequency Correct PWM Mode.
OCF4A, OCF4B and OCF4D in all modes, and
Phase and Frequency Correct PWM Mode.
Figure 16-16. Timer/Counter Timing Diagram, no Prescaling
Figure 16-17. Timer/Counter Timing Diagram, with Prescaler (f
TCNTn
(clk
TCNTn
(clk
COM4A1
1
1
COM4D1
0
0
1
1
TOVn
TOVn
clk
clk
clk
clk
PCK
PCK
PCK
Tn
PCK
Tn
/1)
/8)
Figure 16-17
contains timing data for basic Timer/Counter operation. The figure shows the count
Output Compare Pin configurations in PWM6 Mode
COM4A0
0
1
COM4D0
0
1
0
1
TOP - 1
TOP - 1
shows the same timing data, but with the prescaler enabled, in all modes
OC4A Pin (PC6)
OC4A •
OC4A •
OC4D Pin (PD6)
Disconnected
OC4A •
OC4A •
OC4A •
TOP
TOP
OC4OE2
OC4OE2
OC4OE4
OC4OE4
OC4OE4
Figure 16-19
BOTTOM
BOTTOM
Figure 16-18
clkT4
shows the setting of TOV4 in
OC4A Pin (PC7)
OC4A •
OC4A •
OC4D Pin (PD7)
Disconnected
OC4A •
OC4A •
OC4A •
/8)
T4
ATmega32U4
) is therefore shown as a
shows the setting of
OC4OE3
OC4OE3
OC4OE5
OC4OE5
OC4OE5
BOTTOM + 1
BOTTOM + 1
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