ATMEGA3290PV-10AUR Atmel, ATMEGA3290PV-10AUR Datasheet - Page 141

• Manufacturer Part Number: ATMEGA3290PV-10AUR
• Description: MCU AVR 32K FLASH 10MHZ 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA3290PV-10AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 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 and Asynchronous Operation
17.1
17.2
17.2.1
8021G–AVR–03/11
Features
Overview
Registers
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•
•
•
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•
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Timer/Counter2 is a general purpose, single compare unit, 8-bit Timer/Counter module. A simpli-
fied block diagram of the 8-bit Timer/Counter is shown in
of I/O pins, refer to
on page
device-specific I/O Register and bit locations are listed in the
155.
Figure 17-1. 8-bit Timer/Counter Block Diagram
The Timer/Counter (TCNT2) and Output Compare Register (OCR2A) are 8-bit registers. Inter-
rupt request (shorten as Int.Req.) signals are all visible in the Timer Interrupt Flag Register
Single Compare Unit Counter
Clear Timer on Compare Match (Auto Reload)
Glitch-free, Phase Correct Pulse Width Modulator (PWM)
Frequency Generator
10-bit Clock Prescaler
Overflow and Compare Match Interrupt Sources (TOV2 and OCF2A)
Allows Clocking from External 32kHz Watch Crystal Independent of the I/O Clock
3. CPU accessible I/O Registers, including I/O bits and I/O pins, are shown in bold. The
Status flags
”MLF/ Pinout ATmega329P” on page 2
Timer/Counter
TCNTn
OCRnx
=
ASSRn
direction
count
clear
BOTTOM
Synchronized Status flags
= 0
Control Logic
=
TCCRnx
TOP
asynchronous mode
0xFF
select (ASn)
clk
Tn
Synchronization Unit
OCnx
(Int.Req.)
ATmega329P/3290P
Figure
Generation
Prescaler
Waveform
and
”Register Description” on page
”TQFP / Pinout ATmega3290P”
17-1. For the actual placement
Oscillator
T/C
OCnx
clk
TOVn
(Int.Req.)
clk
clk
ASY
I/O
I/O
TOSC1
TOSC2
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