ATMEGA1280V-8CUR Atmel, ATMEGA1280V-8CUR Datasheet - Page 190
![MCU AVR 128K FLASH 8MHZ 100CBGA](/photos/6/89/68968/313-100-cbga_sml.jpg)
ATMEGA1280V-8CUR
Manufacturer Part Number
ATMEGA1280V-8CUR
Description
MCU AVR 128K FLASH 8MHZ 100CBGA
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA1280V-8CUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
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)
1.8 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TFBGA
Data Bus Width
8 bit
Data Ram Size
8 KB
Mounting Style
SMD/SMT
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
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- Current page: 190 of 444
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19.10.2
2549M–AVR–09/10
TCCR2B – Timer/Counter Control Register B
• Bit 7 – FOC2A: Force Output Compare A
The FOC2A bit is only active when the WGM bits specify a non-PWM mode.
However, for ensuring compatibility with future devices, this bit must be set to zero when
TCCR2B is written when operating in PWM mode. When writing a logical one to the FOC2A bit,
an immediate Compare Match is forced on the Waveform Generation unit. The OC2A output is
changed according to its COM2A1:0 bits setting. Note that the FOC2A bit is implemented as a
strobe. Therefore it is the value present in the COM2A1:0 bits that determines the effect of the
forced compare.
A FOC2A strobe will not generate any interrupt, nor will it clear the timer in CTC mode using
OCR2A as TOP.
The FOC2A bit is always read as zero.
• Bit 6 – FOC2B: Force Output Compare B
The FOC2B bit is only active when the WGM bits specify a non-PWM mode.
However, for ensuring compatibility with future devices, this bit must be set to zero when
TCCR2B is written when operating in PWM mode. When writing a logical one to the FOC2B bit,
an immediate Compare Match is forced on the Waveform Generation unit. The OC2B output is
changed according to its COM2B1:0 bits setting. Note that the FOC2B bit is implemented as a
strobe. Therefore it is the value present in the COM2B1:0 bits that determines the effect of the
forced compare.
A FOC2B strobe will not generate any interrupt, nor will it clear the timer in CTC mode using
OCR2B as TOP.
The FOC2B bit is always read as zero.
• Bits 5:4 – Res: Reserved Bits
These bits are reserved bits and will always read as zero.
• Bit 3 – WGM22: Waveform Generation Mode
See the description in the
• Bit 2:0 – CS22:0: Clock Select
The three Clock Select bits select the clock source to be used by the Timer/Counter, see
19-9 on page
Bit
(0xB1)
Read/Write
Initial Value
191.
FOC2A
W
7
0
FOC2B
“TCCR2A –Timer/Counter Control Register A” on page
W
6
0
ATmega640/1280/1281/2560/2561
R
5
–
0
R
4
0
–
WGM22
R/W
3
0
CS22
R/W
2
0
CS21
R/W
1
0
CS20
R/W
0
0
187.
TCCR2B
Table
190
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