ata5773 ATMEL Corporation, ata5773 Datasheet - Page 138

• Manufacturer Part Number: ata5773
• Description: Microcontroller With Uhf Ask/fsk Transmitter
• Manufacturer: ATMEL Corporation

12. 16-bit Timer/Counter1
12.1
12.2
86
Features
Overview
ATtiny24/44/84
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The 16-bit Timer/Counter unit allows accurate program execution timing (event management),
wave generation, and signal timing measurement.
A simplified block diagram of the 16-bit Timer/Counter is shown in
actual placement of I/O pins, refer to
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
Figure 12-1. 16-bit Timer/Counter Block Diagram
True 16-bit Design (i.e., 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)
Timer/Counter
TCCRnA
OCRnB
OCRnA
TCNTn
ICRn
=
=
“Register Description” on page
Direction
Count
Clear
“Pinout ATtiny24/44/84” on page
Control Logic
TOP
=
TCCRnB
Values
BOTTOM
Fixed
TOP
ICFn (Int.Req.)
clk
Detector
Edge
=
Tn
0
OCnA
(Int.Req.)
OCnB
(Int.Req.)
TOVn
(Int.Req.)
Clock Select
107.
Generation
Generation
Waveform
Waveform
( From Prescaler )
Canceler
Detector
Noise
Edge
Figure 12-1 on page
2. CPU accessible I/O
Comparator Ouput )
( From Analog
OCnA
OCnB
8006G–AVR–01/08
ICPn
Tn
86. For