ATMEGA16A-AUR Atmel, ATMEGA16A-AUR Datasheet - Page 109

• Manufacturer Part Number: ATMEGA16A-AUR
• Description: MCU AVR 16KB FLASH 16MHZ 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA16A-AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

16.11 Register Description
16.11.1
8154B–AVR–07/09
TCCR1A – Timer/Counter1 Control Register A
Figure 16-13. Timer/Counter Timing Diagram, with Prescaler (f
• Bit 7:6 – COM1A1:0: Compare Output Mode for Channel A
• Bit 5:4 – COM1B1:0: Compare Output Mode for Channel B
The COM1A1:0 and COM1B1:0 control the Output Compare pins (OC1A and OC1B respec-
tively) behavior. If one or both of the COM1A1:0 bits are written to one, the OC1A output
overrides the normal port functionality of the I/O pin it is connected to. If one or both of the
COM1B1:0 bit are written to one, the OC1B output overrides the normal port functionality of the
I/O pin it is connected to. However, note that the Data Direction Register (DDR) bit correspond-
ing to the OC1A or OC1B pin must be set in order to enable the output driver.
Bit
Read/Write
Initial Value
(PC and PFC PWM)
and ICFn
(CTC and FPWM)
TOVn
(Update at TOP)
TCNTn
TCNTn
OCRnx
as TOP)
(clk
clk
clk
I/O
(FPWM)
I/O
Tn
/8)
(if used
COM1A1
R/W
7
0
COM1A0
R/W
6
0
TOP - 1
TOP - 1
COM1B1
Old OCRnx Value
R/W
5
0
COM1B0
R/W
4
0
TOP
TOP
FOC1A
W
3
0
FOC1B
W
clk_I/O
2
0
BOTTOM
TOP - 1
/8)
New OCRnx Value
WGM11
R/W
1
0
ATmega16A
WGM10
BOTTOM + 1
R/W
0
0
TOP - 2
TCCR1A
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