ATmega1284PR231 Atmel Corporation, ATmega1284PR231 Datasheet - Page 44

• Manufacturer Part Number: ATmega1284PR231
• Manufacturer: Atmel Corporation

Specifications of ATmega1284PR231

• Flash (kbytes): 128 Kbytes
• Max. Operating Frequency: 20 MHz
• Max I/o Pins: 32
• Spi: 3
• Twi (i2c): 1
• Uart: 2
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Crypto Engine: AES
• Sram (kbytes): 16
• Eeprom (bytes): 4096
• Operating Voltage (vcc): 1.8 to 3.6
• Timers: 3
• Frequency Band: 2.4 GHz
• Max Data Rate (mb/s): 2
• Antenna Diversity: Yes
• External Pa Control: Yes
• Power Output (dbm): 3
• Receiver Sensitivity (dbm): -101
• Receive Current Consumption (ma): 13.2
• Transmit Current Consumption (ma): 14.4
• Link Budget (dbm): 104

7.1.5
8111C–MCU Wireless–09/09
Bit
+0x01
Read/Write
Reset Value
Register Description
CCA_DONE
7
R
0
CCA_STATUS
Register 0x01 (TRX_STATUS):
A read access to TRX_STATUS register signals the current radio transceiver state. A state
change is initiated by writing a state transition command to register bits TRX_CMD (register
0x02, TRX_STATE). Alternatively a state transition can be initiated by the rising edge of pin 11
(SLP_TR) in the appropriate state.
This register is used for Basic and Extended Operating Mode, refer to
Operating Mode” on page
• Bit 7 - CCA_DONE
Refer to
• Bit 6 - CCA_STATUS
Refer to
• Bit 5 - Reserved
• Bit [4:0] - TRX_STATUS
The register bits TRX_STATUS signals the current radio transceiver status. If the requested
s t a t e
STATE_TRANSITION_IN_PROGRESS. Do not try to initiate a further state change while the
radio transceiver is in STATE_TRANSITION_IN_PROGRESS. State transition timings are
defined in
6
R
0
Section 8.5 “Clear Channel Assessment (CCA)” on page
Section 8.5 “Clear Channel Assessment (CCA)” on page
t r a n s i t i o n
Table 7-1 on page
Reserved
5
R
0
i s
47.
4
R
0
n o t
42.
c o m p l e t e d
3
R
0
TRX_STATUS
y e t ,
2
R
0
t h e
1
R
0
94.
94.
T R X _ S T A T U S
Section 7.2 “Extended
AT86RF231
0
R
0
TRX_STATUS
r e t u r n s
44