ATA5771-DK1 Atmel, ATA5771-DK1 Datasheet - Page 90

• 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

90
Atmel ATA5771/73/74
Table 4-36
correct PWM mode.
Table 4-36.
Note:
• Bits 3, 2 – Res: Reserved Bits
These bits are reserved bits in the ATtiny44V and will always read as zero.
• Bits 1:0 – WGM01:0: Waveform Generation Mode
Combined with the WGM02 bit found in the TCCR0B Register, these bits control the counting
sequence of the counter, the source for maximum (TOP) counter value, and what type of
waveform generation to be used, see
Timer/Counter unit are: Normal mode (counter), Clear Timer on Compare Match (CTC) mode,
and two types of Pulse Width Modulation (PWM) modes (see
ation” on page
Table 4-37.
Note:
Mode
COM0A1
0
1
2
3
4
5
6
7
0
0
1
1
1. A special case occurs when OCR0B equals TOP and COM0B1 is set. In this case, the Com-
1. MAX
WGM2
pare Match is ignored, but the set or clear is done at TOP. See
Correct PWM Mode” on page 85
BOTTOM = 0x00
shows the COM0B1:0 bit functionality when the WGM02:0 bits are set to phase
0
0
0
0
1
1
1
1
Compare Output Mode, Phase Correct PWM Mode
Waveform Generation Mode Bit Description
81).
COM0A0
WGM1
= 0xFF
0
1
0
1
0
0
1
1
0
0
1
1
Description
Normal port operation, OC0B disconnected.
Reserved
Clear OC0B on Compare Match when up-counting. Set OC0B on
Compare Match when down-counting.
Set OC0B on Compare Match when up-counting. Clear OC0B on
Compare Match when down-counting.
WGM0
0
1
0
1
0
1
0
1
Timer/Counter
Mode of
Operation
Normal
PWM, Phase
Correct
CTC
Fast PWM
Reserved
PWM, Phase
Correct
Reserved
Fast PWM
Table
for more details.
4-37. Modes of operation supported by the
OCRA
OCRA
OCRA
0xFF
0xFF
0xFF
TOP
–
–
Section 4.15.7 “Modes of Oper-
(1)
Section 4.15.7.4 “Phase
Immediate
Immediate
Update of
BOTTOM
BOTTOM
OCRx at
TOP
TOP
–
–
9137E–RKE–12/10
TOV Flag
BOTTOM
BOTTOM
Set on
MAX
MAX
MAX
TOP
–
–
(1)