ATMEGA64A-MN Atmel, ATMEGA64A-MN Datasheet - Page 146

• Manufacturer Part Number: ATMEGA64A-MN
• Description: IC MCU AVR 64K FLASH 8QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64A-MN

• 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: 53
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

17. 8-bit Timer/Counter2 with PWM
17.1
17.2
17.2.1
8160C–AVR–07/09
Features
Overview
Registers
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Timer/Counter2 is a general purpose, single-channel, 8-bit Timer/Counter module. A simplified
block diagram of the 8-bit Timer/Counter is shown in
I/O pins, refer to
and I/O pins, are shown in bold. The device-specific I/O Register and bit locations are listed in
the
Figure 17-1. 8-bit Timer/Counter Block Diagram
The Timer/Counter (TCNT2) and Output Compare Register (OCR2) are 8-bit registers. Interrupt
request (abbreviated to Int.Req. in the figure) signals are all visible in the Timer Interrupt Flag
Register (TIFR). All interrupts are individually masked with the Timer Interrupt Mask Register
Single Channel Counter
Clear Timer on Compare Match (Auto Reload)
Glitch-free, Phase Correct Pulse width Modulator (PWM)
Frequency Generator
External Event Counter
10-bit Clock Prescaler
Overflow and Compare Match Interrupt Sources (TOV2 and OCF2)
“Register Description” on page
Timer/Counter
“Pin Configuration” on page
TCNTn
OCRn
=
direction
count
clear
BOTTOM
= 0
157.
Control Logic
=
TCCRn
TOP
0xFF
2. CPU accessible I/O Registers, including I/O bits
Figure
clk
Tn
Generation
Waveform
17-1. For the actual placement of
Clock Select
( From Prescaler )
Detector
Edge
ATmega64A
OCn
(Int.Req.)
TOVn
(Int.Req.)
OCn
Tn
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