ATMEGA1280-16AUR Atmel, ATMEGA1280-16AUR Datasheet - Page 162

• Manufacturer Part Number: ATMEGA1280-16AUR
• Description: MCU AVR 128K FLASH 16MHZ 100TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA1280-16AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 86
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• For Use With: ATSTK600-TQFP100 - STK600 SOCKET/ADAPTER 100-TQFPATSTK503 - STARTER KIT AVR EXP MODULE 100P
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

16.11.10 TCCR3C – Timer/Counter 3 Control Register C
16.11.11 TCCR4C – Timer/Counter 4 Control Register C
16.11.12 TCCR5C – Timer/Counter 5 Control Register C
16.11.13 TCNT1H and TCNT1L – Timer/Counter 1
16.11.14 TCNT3H and TCNT3L – Timer/Counter 3
2549M–AVR–09/10
•
•
•
The FOCnA/FOCnB/FOCnC bits are only active when the WGMn3:0 bits specifies a non-PWM
mode. When writing a logical one to the FOCnA/FOCnB/FOCnC bit, an immediate compare
match is forced on the waveform generation unit. The OCnA/OCnB/OCnC output is changed
according to its COMnx1:0 bits setting. Note that the FOCnA/FOCnB/FOCnC bits are imple-
mented as strobes. Therefore it is the value present in the COMnx1:0 bits that determine the
effect of the forced compare.
A FOCnA/FOCnB/FOCnC strobe will not generate any interrupt nor will it clear the timer in Clear
Timer on Compare Match (CTC) mode using OCRnA as TOP.
The FOCnA/FOCnB/FOCnB bits are always read as zero.
• Bit 4:0 – Reserved Bits
These bits are reserved for future use. For ensuring compatibility with future devices, these bits
must be written to zero when TCCRnC is written.
Bit
(0x92)
Read/Write
Initial Value
Bit
(0xA2)
Read/Write
Initial Value
Bit
(0x122)
Read/Write
Initial Value
Bit
(0x85)
(0x84)
Read/Write
Initial Value
Bit
(0x95)
(0x94)
Read/Write
Initial Value
Bit 7 – FOCnA: Force Output Compare for Channel A.
Bit 6 – FOCnB: Force Output Compare for Channel B.
Bit 5 – FOCnC: Force Output Compare for Channel C.
FOC3A
FOC4A
FOC5A
R/W
R/W
W
W
W
7
0
7
0
7
0
7
0
7
0
FOC3B
FOC4B
FOC5B
R/W
R/W
W
W
W
6
0
6
0
6
0
6
0
6
0
ATmega640/1280/1281/2560/2561
FOC3C
FOC4C
FOC3C
R/W
R/W
W
W
W
5
0
5
0
5
0
5
0
5
0
R/W
R/W
R
R
R
4
–
0
4
–
0
4
–
0
4
0
4
0
TCNT1[15:8]
TCNT3[15:8]
TCNT1[7:0]
TCNT3[7:0]
R/W
R/W
R
R
R
3
0
3
0
3
–
0
3
–
0
3
–
0
R/W
R/W
2
0
2
0
R
R
R
2
–
0
2
–
0
2
–
0
R/W
R/W
R
R
R
1
0
1
0
1
0
1
0
1
0
–
–
–
R/W
R/W
R
R
R
0
0
0
0
0
–
0
0
–
0
0
–
0
TCCR3C
TCCR4C
TCCR5C
TCNT1H
TCNT1L
TCNT3H
TCNT3L
162