ATA5771-DK1 Atmel, ATA5771-DK1 Datasheet - Page 76
ATA5771-DK1
Manufacturer Part Number
ATA5771-DK1
Description
BOARD XMITTER FOR ATA5771 868MHZ
Manufacturer
Atmel
Type
Transmitterr
Specifications of ATA5771-DK1
Frequency
868MHz
Maximum Frequency
868 MHz
Supply Voltage (max)
4 V
Supply Voltage (min)
2 V
Supply Current
8.5 mA
Product
RF Development Tools
For Use With/related Products
ATA5771
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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4.15
4.15.1
4.15.2
76
8-bit Timer/Counter0 with PWM
Atmel ATA5771/73/74
Features
Overview
•
•
•
•
•
•
•
Timer/Counter0 is a general purpose 8-bit Timer/Counter module, with two independent Out-
put Compare Units, and with PWM support. It allows accurate program execution timing
(event management) and wave generation.
A simplified block diagram of the 8-bit Timer/Counter is shown in
placement of I/O pins. 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
4.9.10 “Register Description” on page
Figure 4-26. 8-bit Timer/Counter Block Diagram
Two Independent Output Compare Units
Double Buffered Output Compare Registers
Clear Timer on Compare Match (Auto Reload)
Glitch Free, Phase Correct Pulse Width Modulator (PWM)
Variable PWM Period
Frequency Generator
Three Independent Interrupt Sources (TOV0, OCF0A, and OCF0B)
Timer/Counter
TCCRnA
OCRnA
TCNTn
OCRnB
=
=
Direction
Count
Clear
39.
Control Logic
TOP
=
TCCRnB
Value
BOTTOM
Fixed
TOP
clk
=
Tn
0
OCnA
(Int.Req.)
OCnB
(Int.Req.)
TOVn
(Int.Req.)
Clock Select
Generation
Generation
( From Prescaler )
Waveform
Waveform
Detector
Edge
Figure
4-26. For the actual
OCnA
OCnB
Tn
9137E–RKE–12/10
Section
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