ATA5771-DK1 Atmel, ATA5771-DK1 Datasheet - Page 114

• 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

4.16.10
114
Atmel ATA5771/73/74
Timer/Counter Timing Diagrams
The N variable represents the prescaler divider (1, 8, 64, 256, or 1024).
The extreme values for the OCR1x Register represents special cases when generating a
PWM waveform output in the phase correct PWM mode. If the OCR1x is set equal to BOT-
TOM the output will be continuously low and if set equal to TOP the output will be set to high
for non-inverted PWM mode. For inverted PWM the output will have the opposite logic values.
The Timer/Counter is a synchronous design and the timer clock (clk
clock enable signal in the following figures. The figures include information on when interrupt
flags are set, and when the OCR1x Register is updated with the OCR1x buffer value (only for
modes utilizing double buffering).
OCF1x.
Figure 4-46. Timer/Counter Timing Diagram, Setting of OCF1x, no Prescaling
Figure 4-47
Figure 4-47. Timer/Counter Timing Diagram, Setting of OCF1x, with Prescaler (f
TCNTn
OCRnx
OCFnx
OCRnx
(clk
TCNTn
OCFnx
(clk
clk
clk
clk
clk
I/O
I/O
I/O
Tn
I/O
Tn
/1)
/8)
shows the same timing data, but with the prescaler enabled.
OCRnx - 1
OCRnx - 1
Figure 4-46
OCRnx
OCRnx
OCRnx Value
OCRnx Value
shows a timing diagram for the setting of
OCRnx + 1
OCRnx + 1
T1
) is therefore shown as a
OCRnx + 2
OCRnx + 2
9137E–RKE–12/10
clk_I/O
/8)