Output Compare Register 1 A
– OCR1AH and OCR1AL
Bit
7
6
5
4
3
2
1
0
OCR1A[15:8]
OCR1A[7:0]
OCR1AH
OCR1AL
Read/Write
Initial Value
R/W
0
R/W
0
R/W
0
R/W
R/W
R/W
0
R/W
0
R/W
0
0
0
Output Compare Register 1 B
– OCR1BH and OCR1BL
Bit
7
6
5
4
3
2
1
0
OCR1B[15:8]
OCR1B[7:0]
OCR1BH
OCR1BL
Read/Write
Initial Value
R/W
0
R/W
0
R/W
0
R/W
R/W
R/W
0
R/W
0
R/W
0
0
0
Output Compare Register 1 C
– OCR1CH and OCR1CL
Bit
7
6
5
4
3
2
1
0
OCR1C[15:8]
OCR1C[7:0]
OCR1CH
OCR1CL
Read/Write
Initial Value
R/W
0
R/W
0
R/W
0
R/W
R/W
R/W
0
R/W
0
R/W
0
0
0
Output Compare Register 3 A
– OCR3AH and OCR3AL
Bit
7
6
5
4
3
2
1
0
OCR3A[15:8]
OCR3A[7:0]
OCR3AH
OCR3AL
Read/Write
Initial Value
R/W
0
R/W
0
R/W
0
R/W
R/W
R/W
0
R/W
0
R/W
0
0
0
Output Compare Register 3 B
– OCR3BH and OCR3BL
Bit
7
6
5
4
3
2
1
0
OCR3B[15:8]
OCR3B[7:0]
OCR3BH
OCR3BL
Read/Write
Initial Value
R/W
0
R/W
0
R/W
0
R/W
R/W
R/W
0
R/W
0
R/W
0
0
0
Output Compare Register 3 C
– OCR3CH and OCR3CL
Bit
7
6
5
4
3
2
1
0
OCR3C[15:8]
OCR3C[7:0]
OCR3CH
OCR3CL
Read/Write
Initial Value
R/W
0
R/W
0
R/W
0
R/W
R/W
R/W
0
R/W
0
R/W
0
0
0
Output Compare Register 4 A
– OCR4AH and OCR4AL
Bit
7
6
5
4
3
2
1
0
OCR4A[15:8]
OCR4A[7:0]
OCR4AH
OCR4AL
Read/Write
Initial Value
R/W
0
R/W
0
R/W
0
R/W
R/W
R/W
0
R/W
0
R/W
0
0
0
Output Compare Register 4 B
– OCR4BH and OCR4BL
Bit
7
6
5
4
3
2
1
0
OCR4B[15:8]
OCR4B[7:0]
OCR4BH
OCR4BL
Read/Write
Initial Value
R/W
0
R/W
0
R/W
0
R/W
R/W
R/W
0
R/W
0
R/W
0
0
0
164
ATmega640/1280/1281/2560/2561
2549A–AVR–03/05