ATA5771-PXQW Atmel, ATA5771-PXQW Datasheet - Page 81

• Manufacturer Part Number: ATA5771-PXQW
• Description: XMITTR UHF ASK/FSK 868MHZ 24VQFN
• Manufacturer: Atmel

Specifications of ATA5771-PXQW

• Frequency: 868MHz ~ 928MHz
• Modulation Or Protocol: UHF
• Power - Output: 8dBm
• Voltage - Supply: 2 V ~ 4 V
• Current - Transmitting: 9.8mA
• Data Interface: PCB, Surface Mount
• Memory Size: 4kB Flash, 256B EEPROM, 256B SRAM
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-VQFN Exposed Pad, 24-HVQFN, 24-SQFN, 24-DHVQFN
• Processor Series: ATA5x
• Core: AVR8
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 4 KB
• Data Ram Size: 256 B
• Interface Type: SPI, USI
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Sensitivity: -
• Data Rate - Maximum: -
• Current - Receiving: -
• Lead Free Status / Rohs Status: Details

4.15.6.1
4.15.7
9137E–RKE–12/10
Modes of Operation
Compare Output Mode and Waveform Generation
Figure 4-29. Compare Match Output Unit, Schematic
The general I/O port function is overridden by the Output Compare (OC0x) from the Waveform
Generator if either of the COM0x1:0 bits are set. However, the OC0x pin direction (input or
output) is still controlled by the Data Direction Register (DDR) for the port pin. The Data Direc-
tion Register bit for the OC0x pin (DDR_OC0x) must be set as output before the OC0x value is
visible on the pin. The port override function is independent of the Waveform Generation
mode.
The design of the Output Compare pin logic allows initialization of the OC0x state before the
output is enabled. Note that some COM0x1:0 bit settings are reserved for certain modes of
operation, see
The Waveform Generator uses the COM0x1:0 bits differently in Normal, CTC, and PWM
modes. For all modes, setting the COM0x1:0 = 0 tells the Waveform Generator that no action
on the OC0x Register is to be performed on the next Compare Match. For compare output
actions in the non-PWM modes refer to
Table 4-32 on page
A change of the COM0x1:0 bits state will have effect at the first Compare Match after the bits
are written. For non-PWM modes, the action can be forced to have immediate effect by using
the 0x strobe bits.
The mode of operation, i.e., the behavior of the Timer/Counter and the Output Compare pins,
is defined by the combination of the Waveform Generation mode (WGM02:0) and Compare
Output mode (COM0x1:0) bits. The Compare Output mode bits do not affect the counting
sequence, while the Waveform Generation mode bits do. The COM0x1:0 bits control whether
the PWM output generated should be inverted or not (inverted or non-inverted PWM). For
non-PWM modes the COM0x1:0 bits control whether the output should be set, cleared, or tog-
gled at a Compare Match (See
COMnx1
COMnx0
FOCn
clk
Section 4.10.8 “Register Description” on page 44
I/O
88, and for phase correct PWM refer to
Waveform
Generator
Section 4.15.7 “Modes of Operation” on page
Table 4-31 on page
D
D
D
PORT
OCnx
DDR
Q
Q
Q
Atmel ATA5771/73/74
Table 4-33 on page
1
0
88. For fast PWM mode, refer to
OCn
Pin
81).
89.
81