AT86RF212 Atmel Corporation, AT86RF212 Datasheet - Page 114

• Manufacturer Part Number: AT86RF212
• Manufacturer: Atmel Corporation

Specifications of AT86RF212

• Max. Operating Frequency: 0 MHz
• Crypto Engine: AES
• Operating Voltage (vcc): 1.8 to 3.6
• Frequency Band: 700/800/900MHz
• Max Data Rate (mb/s): 1
• Antenna Diversity: No
• External Pa Control: Yes
• Power Output (dbm): 10
• Receiver Sensitivity (dbm): -110
• Receive Current Consumption (ma): 9.0
• Transmit Current Consumption (ma): 18 at 5dBm
• Link Budget (dbm): 120

114
AT86RF212
• Bit 3 – DVREG_EXT
If set, this register bit disables the internal digital voltage regulator to apply an external
regulated 1.8 V supply for the digital building blocks.
Table 7-20. Regulated Voltage Supply Control for Digital Building Blocks
• Bit 2 – DVDD_OK
This register bit indicates if the internal 1.8 V regulated voltage supply DVDD has
settled. The bit is set to logic high if DVREG_EXT = 1.
Table 7-21. Regulated Voltage Supply Control for Digital Building Blocks
While the reset value of this bit is 0, any practical access to the register is only possible
when DVREG is active. So this bit is normally always read out as 1.
• Bit 1:0 – Reserved
Register 0x0C (TRX_CTRL_2):
This register controls the TRX behavior.
Table 7-22. Register 0x0C (TRX_CTRL_2)
• Bit 7 – RX_SAFE_MODE
Refer to section 9.7.2.
• Bit 6 – TRX_OFF_AVDD_EN
If this register bit is set, the analog voltage regulator is turned on (kept on) during
TRX_OFF, enabling faster RX/TX turn on time. This is especially useful for a short
stopover in TRX_OFF state. The recharge time for capacitances is avoided in this case.
The current consumption increases by typical 100 µA.
• Bit 5:0
Refer to section 7.1.5.
Bit
Name
Read/Write
Reset Value
Bit
Name
Read/Write
Reset Value
Register Bit
DVREG_EXT
Register Bit
DVDD_OK
7
RX_SAFE_MODE
R/W
0
3
BPSK_OQPSK
R/W
0
Value
Value
0
1
0
1
6
TRX_OFF_AVDD_EN
R/W
0
2
SUB_MODE
R/W
1
Description
Internal voltage regulator enabled (digital domain)
Internal voltage regulator disabled; use external
regulated 1.8 V supply voltage for the digital domain
Description
Digital voltage regulator disabled or supply voltage not
stable
Digital supply voltage has settled
5
OQPSK_SCRAM_EN
R/W
1
1
OQPSK_DATA_RATE
R/W
0
8168C-MCU Wireless-02/10
4
OQPSK_SUB1_RC_EN
R/W
0
0
OQPSK_DATA_RATE
R/W
0