ATMEGA128A-ANR Atmel, ATMEGA128A-ANR Datasheet - Page 140

• Manufacturer Part Number: ATMEGA128A-ANR
• Description: IC MCU AVR 128K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA128A-ANR

• 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: 53
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 4K 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: 64-TQFP
• Core: AVR8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

15.11.11 OCR1CH and OCR1CL - Output Compare Register 1 C
15.11.12 OCR3AH and OCR3AL - Output Compare Register 3 A
15.11.13 OCR3BH and OCR3BL - Output Compare Register 3 B
15.11.14 OCR3CH and OCR3CL - Output Compare Register 3 C
15.11.15 ICR1H and ICR1L - Input Capture Register 1
8151H–AVR–02/11
The Output Compare Registers contain a 16-bit value that is continuously compared with the
counter value (TCNTn). A match can be used to generate an output compare interrupt, or to
generate a waveform output on the OCnx pin.
The Output Compare Registers are 16-bit in size. To ensure that both the high and low bytes are
written simultaneously when the CPU writes to these registers, the access is performed using an
8-bit temporary High Byte Register (TEMP). This Temporary Register is shared by all the other
16-bit registers.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
See “Accessing 16-bit Registers” on page 115.
R/W
R/W
R/W
R/W
R/W
7
0
7
0
7
0
7
0
7
0
R/W
R/W
R/W
R/W
R/W
6
0
6
0
6
0
6
0
6
0
R/W
R/W
R/W
R/W
R/W
5
0
5
0
5
0
5
0
5
0
R/W
R/W
R/W
R/W
R/W
4
0
4
0
4
OCR3A[15:8]
0
4
OCR3B[15:8]
0
OCR3C[15:8]
4
0
OCR1C[15:8]
OCR3C[7:0]
OCR1C[7:0]
OCR3A[7:0]
OCR3B[7:0]
ICR1[15:8]
ICR1[7:0]
R/W
R/W
R/W
R/W
R/W
3
0
3
0
3
0
3
0
3
0
R/W
R/W
R/W
R/W
R/W
2
0
2
0
2
0
2
0
2
0
ATmega128A
R/W
R/W
R/W
R/W
R/W
1
0
1
0
1
0
1
0
1
0
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
0
0
OCR3CH
OCR3AH
OCR3BH
OCR3CL
OCR1CH
OCR3AL
OCR3BL
OCR1CL
ICR1H
ICR1L
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