ATMEGA48V_11 ATMEL [ATMEL Corporation], ATMEGA48V_11 Datasheet - Page 108

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ATMEGA48V_11

Manufacturer Part Number
ATMEGA48V_11
Description
8-bit Atmel Microcontroller with 4/8/16K Bytes In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
16. 16-bit Timer/Counter1 with PWM
16.1
16.2
2545T–AVR–05/11
Features
Overview
The 16-bit Timer/Counter unit allows accurate program execution timing (event management),
wave generation, and signal timing measurement.
Most register and bit references in this section are written in general form. A lower case “n”
replaces the Timer/Counter number, and a lower case “x” replaces the Output Compare unit
channel. However, when using the register or bit defines in a program, the precise form must be
used, that is, TCNT1 for accessing Timer/Counter1 counter value and so on.
A simplified block diagram of the 16-bit Timer/Counter is shown in
the actual placement of I/O pins, refer to
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
The PRTIM1 bit in
enable Timer/Counter1 module.
True 16-bit design (that is, allows 16-bit PWM)
Two independent output compare units
Double buffered output compare registers
One input capture unit
Input capture noise canceler
Clear timer on compare match (auto reload)
Glitch-free, phase correct pulse width modulator (PWM)
Variable PWM period
Frequency generator
External event counter
Four independent interrupt sources (TOV1, OCF1A, OCF1B, and ICF1)
“PRR – Power reduction register” on page 44
“Pinout Atmel ATmega48/88/168.” on page
“Register description” on page
ATmega48/88/168
Figure 16-1 on page
must be written to zero to
130.
109. For
2. CPU
108

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