AT86RF231-ZUR Atmel, AT86RF231-ZUR Datasheet - Page 122

• Manufacturer Part Number: AT86RF231-ZUR
• Description: IC RADIO TXRX 2.4GHZ 32-VQFN
• Manufacturer: Atmel

Specifications of AT86RF231-ZUR

• Frequency: 2.4GHz
• Data Rate - Maximum: 2Mbps
• Modulation Or Protocol: 802.15.4 Zigbee, 6LoWPAN, RF4CE, SP100, WirelessHART™, ISM
• Applications: Industrial Monitoring and Control, Wireless Alarm and Security Systems
• Power - Output: -17dBm ~ 3dBm
• Sensitivity: -101dBm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Current - Receiving: 12.3mA
• Current - Transmitting: 14mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Number Of Receivers: 1
• Number Of Transmitters: 1
• Wireless Frequency: 2405 MHz to 2480 MHz
• Interface Type: SPI
• Noise Figure: 6 dB
• Output Power: 20 dB
• Operating Supply Voltage: 2.5 V, 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Maximum Supply Current: 12.3 mA
• Minimum Operating Temperature: - 40 C
• Modulation: OQPSK
• Protocol Supported: 802.15.4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

9.7.5
9.7.6
8111C–MCU Wireless–09/09
Bit
+0x08
Read/Write
Reset Value
Interrupt Handling
Register Description
CCA_REQUEST
7
W
0
If the PLL operates for a long time on the same channel, e.g. more than 5 min, or the operating
temperature changes significantly, it is recommended to initiate the calibration loops manually.
Both calibration loops can be initiated manually by setting PLL_CF_START = 1 (register 0x1A,
PLL_CF) and register bit PLL_DCU_START = 1 (register 0x1B, PLL_DCU). To start the calibra-
tion the device must be in PLL_ON or RX_ON state. The completion of the center frequency
tuning is indicated by a PLL_LOCK interrupt.
Both calibration loops may be run simultaneously.
Two different interrupts indicate the PLL status (refer to register 0x0F). IRQ_0 (PLL_LOCK) indi-
cates that the PLL has locked. IRQ_1 (PLL_UNLOCK) interrupt indicates an unexpected unlock
condition. A PLL_LOCK interrupt clears any preceding PLL_UNLOCK interrupt automatically
and vice versa.
A PLL_LOCK interrupt is supposed to occur in the following situations:
Any other occurrences of PLL interrupts indicate erroneous behavior and require checking of the
actual device status.
The state transition from BUSY_TX to PLL_ON after successful transmission does not generate
an IRQ_0 (PLL_LOCK) within the settling period.
Register 0x08 (PHY_CC_CCA):
This register sets the IEEE 802.15.4 - 2.4 GHz channel number
• Bit 7 - CCA_REQUEST
Refer to
• Bit [6:5] - CCA_MODE
Refer to
• Bit [4:0] - CHANNEL
The register bits CHANNEL define the RX/TX channel. The channel assignment is according to
IEEE 802.15.4.
• State change from TRX_OFF to PLL_ON / RX_ON / TX_ARET_ON / RX_AACK_ON
• Channel change in states PLL_ON / RX_ON / TX_ARET_ON / RX_AACK_ON
R/W
6
0
CCA_MODE
Section 8.5 “Clear Channel Assessment (CCA)” on page
Section 8.5 “Clear Channel Assessment (CCA)” on page
R/W
5
1
R/W
4
0
R/W
3
1
CHANNEL
R/W
2
0
R/W
1
94.
94.
1
AT86RF231
R/W
0
1
PHY_CC_CCA
122