AT90PWM2B-16SE ATMEL [ATMEL Corporation], AT90PWM2B-16SE Datasheet - Page 95

• Manufacturer Part Number: AT90PWM2B-16SE
• Description: 8-bit Microcontroller with 8K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

14.8
14.8.1
4317J–AVR–08/10
8-bit Timer/Counter Register Description
Timer/Counter Control Register A – TCCR0A
Figure 14-9. Timer/Counter Timing Diagram, with Prescaler (f
Figure 14-10
mode and PWM mode, where OCR0A is TOP.
Figure 14-10. Timer/Counter Timing Diagram, Setting of OCF0x, with Prescaler (f
Figure 14-11
PWM mode where OCR0A is TOP.
Figure 14-11. Timer/Counter Timing Diagram, Clear Timer on Compare Match mode, with Pres-
Bit
Read/Write
Initial Value
TCNTn
TCNTn
TCNTn
(clk
(clk
(clk
OCRnx
OCRnx
TOVn
OCFnx
(CTC)
OCFnx
clk
clk
clk
clk
clk
clk
I/O
I/O
I/O
I/O
Tn
I/O
Tn
I/O
Tn
/8)
/8)
/8)
shows the setting of OCF0B in all modes and OCF0A in all modes except CTC
shows the setting of OCF0A and the clearing of TCNT0 in CTC mode and fast
caler (f
COM0A1
R/W
7
0
clk_I/O
OCRnx - 1
COM0A0
MAX - 1
TOP - 1
R/W
/8)
6
0
COM0B1
R/W
5
0
COM0B0
OCRnx
R/W
MAX
TOP
4
0
OCRnx Value
TOP
R
3
–
0
AT90PWM2/3/2B/3B
OCRnx + 1
BOTTOM
BOTTOM
clk_I/O
R
2
–
0
/8)
WGM01
R/W
1
0
BOTTOM + 1
BOTTOM + 1
WGM00
OCRnx + 2
R/W
0
0
clk_I/O
/8)
TCCR0A
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