8-bit Timer/Counter0 with PWM
Timer/Counter0 is a general purpose, single channel, 8-bit Timer/Counter module.
The main features are:
.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 (TOV0 and OCF0)

Overview
A simplified block diagram of the 8-bit Timer/Counter is shown in Figure 27. For the actual placement of I/O pins, refer to "Pinout ATmega16" 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 77.

Figure 27. 8-bit Timer/Counter Block Diagram


T/C0是一個通用的單通道8位計時器/定數(shù)器模塊。主要特征如下：
•單通道計數(shù)器
• 比較匹配發(fā)生時自動清除計時器
• 具有無干擾脈沖和正確相位的脈沖寬度調(diào)制功能
• 頻率發(fā)生器
• 外部時鐘源
• 10位時鐘預(yù)分頻器
• 溢出和比較匹配中斷源（TOV0和OCF0）