AT86RF231-ZUR Atmel, AT86RF231-ZUR Datasheet - Page 114

• 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

9.5.4
9.5.5
8111C–MCU Wireless–09/09
Bit
+0x11
Read/Write
Reset Value
Interrupt Handling
Register Description
7
R
0
Reserved
A supply voltage drop below the configured threshold value is indicated by an interrupt IRQ_7
(BAT_LOW), see
if BATMON_OK changes from 1 to 0.
No interrupt is generated when:
When the battery voltage is close to the programmed threshold voltage, noise or temporary volt-
age drops may generate unwanted interrupts. To avoid this:
Register 0x11 (BATMON):
This register configures the battery monitor to compare the supply voltage at pin 28 (EVDD) to
the threshold BATMON_VTH. Additionally the supply voltage status at pin 28 (EVDD) is accessi-
ble by reading register bit BATMON_OK according to the actual BATMON settings.
• Bit [7:6] - Reserved
• Bit 5 - BATMON_OK
The register bit BATMON_OK indicates the level of the external supply voltage with respect to
the programmed threshold BATMON_VTH.
Table 9-9.
• Bit 4 - BATMON_HR
BATMON_HR sets the range and resolution of the battery monitor.
Table 9-10.
Register Bit
BATMON_OK
Register Bit
BATMON_HR
• The battery voltage is under the default 1.8V threshold at power up
• A new threshold is set, which is still above the current supply voltage
• Disable the IRQ_7 (BAT_LOW) in register 0x0E (IRQ_MASK) and treat the battery as
• Set a lower threshold value.
6
R
0
(BATMON_OK was never 1), or
(BATMON_OK remains 0).
empty, or
BATMON_OK
5
R
0
Battery Monitor Status
Battery Monitor Range Selection
Section 6.6 “Interrupt Logic” on page
BATMON_HR
R/W
4
0
Value
Value
0
1
0
1
Description
The battery voltage is below the threshold.
The battery voltage is above the threshold.
Description
Enables the low range, see BATMON_VTH
Enables the high range, see BATMON_VTH
R/W
3
0
R/W
2
0
BATMON_VTH
29. Note that the interrupt is issued only
R/W
1
1
AT86RF231
R/W
0
0
BATMON
114