ATA6603-EK Atmel, ATA6603-EK Datasheet - Page 160

• Manufacturer Part Number: ATA6603-EK
• Description: MCU, MPU & DSP Development Tools Demoboard LIN-MCM
• Manufacturer: Atmel

Specifications of ATA6603-EK

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.15
4.15.1
Figure 4-53. 8-bit Timer/Counter Block Diagram
160
8-bit Timer/Counter2 with PWM and Asynchronous Operation
ATA6602/ATA6603
Overview
Timer/Counter2 is a general purpose, single channel, 8-bit Timer/Counter module. The main
features are:
•
•
•
•
•
•
•
A simplified block diagram of the 8-bit Timer/Counter is shown in
cific I/O Register and bit locations are listed in the
page
The PRTIM2 bit in
enable Timer/Counter2 module.
Timer/Counter
TCCRnA
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, OCF2A and OCF2B)
Allows Clocking from External 32 kHz Watch Crystal Independent of the I/O Clock
OCRnA
TCNTn
OCRnB
=
=
172.
Direction
Count
Clear
“Power Reduction Register - PRR” on page 64
Control Logic
TOP
=
TCCRnB
BOTTOM
Fixed
Value
TOP
clk
= 0
TN
Prescaler
(Int.Req.)
(Int.Req.)
OCnB
OCnA
Generation
Generation
Waveform
Waveform
“8-bit Timer/Counter Register Description” on
TOVn
(Int.Req.)
OCnA
OCnB
Oscillator
T/C
Figure
clk
must be written to zero to
I/O
4-53. The device-spe-
TOSC1
TOSC2
4921E–AUTO–09/09