ATA8743-PXQW Atmel, ATA8743-PXQW Datasheet - Page 118
ATA8743-PXQW
Manufacturer Part Number
ATA8743-PXQW
Description
MCU W/TRANSMITTER ASK/FSK 24QFN
Manufacturer
Atmel
Datasheet
1.ATA8743-PXQW.pdf
(238 pages)
Specifications of ATA8743-PXQW
Frequency
868MHz ~ 928MHz
Applications
Home Automation, Remote Sensing, RKE
Modulation Or Protocol
ASK, FSK
Data Rate - Maximum
32 kBit/s
Power - Output
3.5dBm ~ 8dBm
Current - Transmitting
9.3mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Memory Size
4kB Flash, 256B EEPROM, 256B SRAM
Voltage - Supply
1.8 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
24-VQFN Exposed Pad, 24-HVQFN, 24-SQFN, 24-DHVQFN
Processor Series
ATA8x
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
16 MHz
Number Of Programmable I/os
12
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ATASTK512-EK1-IND
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Details
- Current page: 118 of 238
- Download datasheet (4Mb)
21.8
118
Compare Match Output Unit
ATA8743
The Compare Output mode (COM1x1:0) bits have two functions. The Waveform Generator uses
the COM1x1:0 bits for defining the Output Compare (OC1x) state at the next compare match.
Secondly the COM1x1:0 bits control the OC1x pin output source.
shows a simplified schematic of the logic affected by the COM1x1:0 bit setting. The I/O Regis-
ters, I/O bits, and I/O pins in the figure are shown in bold. Only the parts of the general I/O port
control registers (DDR and PORT) that are affected by the COM1x1:0 bits are shown. When
referring to the OC1x state, the reference is for the internal OC1x Register, not the OC1x pin. If
a system reset occur, the OC1x Register is reset to “0”.
Figure 21-5. Compare Match Output Unit, Schematic
The general I/O port function is overridden by the Output Compare (OC1x) from the Waveform
Generator if either of the COM1x1:0 bits are set. However, the OC1x pin direction (input or out-
put) is still controlled by the Data Direction Register (DDR) for the port pin. The Data Direction
Register bit for the OC1x pin (DDR_OC1x) must be set as output before the OC1x value is visi-
ble on the pin. The port override function is generally independent of the Waveform Generation
mode, but there are some exceptions. See
and
The design of the Output Compare pin logic allows initialization of the OC1x state before the out-
put is enabled. Note that some COM1x1:0 bit settings are reserved for certain modes of
operation. See
The COM1x1:0 bits have no effect on the Input Capture unit.
Table 21-3 on page 130
COMnx1
COMnx0
FOCnx
clk
I/O
“Register Description” on page 129
Waveform
Generator
for details.
D
D
D
PORT
DDR
OCnx
Table 21-1 on page
Q
Q
Q
1
0
129,
Figure 21-5 on page 118
Table 21-2 on page 129
9152B–INDCO–02/10
OCnx
Pin
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