ATmega1284PR231 Atmel Corporation, ATmega1284PR231 Datasheet - Page 68
ATmega1284PR231
Manufacturer Part Number
ATmega1284PR231
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT86RF231.pdf
(198 pages)
2.ATMEGA1284PR231.pdf
(380 pages)
3.ATMEGA1284PR231.pdf
(20 pages)
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
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7.2.6
7.2.7
8111C–MCU Wireless–09/09
Bit
+0x01
Read/Write
Reset Value
Register Summary
Register Description - Control Registers
CCA_DONE
7
R
0
CCA_STATUS
The following registers are to be configured to control the Extended Operating Mode:
Table 7-14.
Register 0x01 (TRX_STATUS):
The read-only register TRX_STATUS signals the present state of the radio transceiver as well
as the status of a CCA application. A state change is initiated by writing a state transition com-
mand to register bits TRX_CMD (register 0x02, TRX_STATE).
• Bit 7 - CCA_DONE
Refer to
Operating Mode.
• Bit 6 - CCA_STATUS
Refer to
Operating Mode.
• Bit 5 - Reserved
• Bit [4:0] - TRX_STATUS
The register bits TRX_STATUS signal the current radio transceiver status.
Reg.-Addr
0x01
0x02
0x04
0x08
0x09
0x17
0x20 - 0x2B
0x2C
0x2D
0x2E
0x2F
6
R
0
Section 8.5 “Clear Channel Assessment (CCA)” on page
Section 8.5 “Clear Channel Assessment (CCA)” on page
Reserved
Register Summary
5
Register Name
TRX_STATUS
TRX_STATE
TRX_CTRL_1
PHY_CC_CCA
CCA_THRES
XAH_CTRL_1
XAH_CTRL_0
CSMA_SEED_0
CSMA_SEED_1
CSMA_BE
R
0
4
R
0
Description
Radio transceiver state control, TX_ARET status
Radio transceiver status, CCA result
TX_AUTO_CRC_ON
CCA mode control, see
CCA threshold settings, see
RX_AACK control
Address filter configuration
-
TX_ARET control, retries value control
CSMA-CA seed value
CSMA-CA seed value, RX_AACK control
CSMA-CA back-off exponent control
3
R
0
Short address, PAN-ID and IEEE address
TRX_STATUS
2
R
0
Section 8.5.6
Section 8.5.6
1
R
0
94, not updated in Extended
94, not updated in Extended
AT86RF231
0
R
0
TRX_STATUS
68
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