ATmega1284PR231 Atmel Corporation, ATmega1284PR231 Datasheet - Page 87

• 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

8.2.5
8111C–MCU Wireless–09/09
Bit
+0x04
Read/Write
Reset Value
Register Description
PA_EXT_EN
R/W
7
0
IRQ_2_EXT_EN
Register 0x04 (TRX_CTRL_1):
The TRX_CTRL_1 register is a multi purpose register to control various operating modes and
settings of the radio transceiver.
• Bit 7 - PA_EXT_EN
Refer to
• Bit 6 - IRQ_2_EXT_EN
Refer to
• Bit 5 - TX_AUTO_CRC_ON
Register bit TX_AUTO_CRC_ON controls the automatic FCS generation for TX operations. The
automatic FCS algorithm is performed autonomously by the radio transceiver if register bit
TX_AUTO_CRC_ON = 1.
• Bit 4 - RX_BL_CTRL
Refer to
• Bit [3:2] - SPI_CMD_MODE
Refer to
• Bit 1 - IRQ_MASK_MODE
Refer to
• Bit 0 - IRQ_POLARITY
Refer to
Register 0x06 (PHY_RSSI):
The PHY_RSSI register is a multi purpose register that indicates FCS validity, provides random
numbers and shows the actual RSSI value.
R/W
6
Bit
+0x06
Read/Write
Reset Value
0
Section 11.5 “RX/TX Indicator” on page
Section 11.6 “RX Frame Time Stamping” on page
Section 11.7 “Frame Buffer Empty Indicator” on page
Section 6.3 “Radio Transceiver Status information” on page
Section 6.6 “Interrupt Logic” on page
Section 6.6 “Interrupt Logic” on page
TX_AUTO_CRC_ON
RX_CRC_VALID
R/W
5
1
7
R
0
RX_BL_CTRL
R/W
4
0
6
R
0
RND_VALUE
5
R
0
R/W
3
SPI_CMD_MODE
0
29.
29.
4
R
0
147.
R/W
2
0
3
R
0
IRQ_MASK_MODE
150.
RSSI
152.
2
R/W
R
0
1
0
24.
1
R
0
IRQ_POLARITY
AT86RF231
R/W
0
0
0
R
0
TRX_CTRL_1
PHY_RSSI
87