ATMEGA162V-1PC Atmel, ATMEGA162V-1PC Datasheet - Page 136

• Manufacturer Part Number: ATMEGA162V-1PC
• Description: IC MCU AVR 16K 1.8V 8MHZ 40-DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA162V-1PC

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 1MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• 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): 1.8 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -

8-bit Timer/Counter2
with PWM and
Asynchronous
operation
Overview
Registers
136
ATmega162(V/U/L)
Timer/Counter2 is a general purpose, single channel, 8-bit Timer/Counter module. The
main features are:
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A simplified block diagram of the 8-bit Timer/Counter is shown in Figure 59. For the
actual placement of I/O pins, refer to “Pinout ATmega162” on page 2. CPU accessible
I/O Registers, including I/O bits and I/O pins, are shown in bold. The device-specific I/O
Register and bit locations are listed in the “8-bit Timer/Counter Register Description” on
page 147.
Figure 59. 8-bit Timer/Counter Block Diagram
The Timer/Counter (TCNT2) and Output Compare Register (OCR2) are 8-bit registers.
Interrupt request (shorten as Int.Req.) signals are all visible in the Timer Interrupt Flag
Register (TIFR). All interrupts are individually masked with the Timer Interrupt Mask
Register (TIMSK). TIFR and TIMSK are not shown in the figure since these registers are
shared by other timer units.
Single Channel 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 OCF2)
Allows Clocking from External 32 kHz Watch Crystal Independent of the I/O Clock
Status flags
Timer/Counter
TCNTn
OCRn
=
ASSRn
direction
count
clear
BOTTOM
Synchronized Status flags
= 0
Control Logic
=
TCCRn
TOP
asynchronous mode
0xFF
select (ASn)
clk
Tn
Synchronization Unit
OCn
(Int.Req.)
Generation
Prescaler
Waveform
Oscillator
T/C
2513C–AVR–09/02
TOVn
(Int.Req.)
clk
OCn
clk
clk
I/O
ASY
I/O
TOSC1
TOSC2