AT86RF232 Atmel Corporation, AT86RF232 Datasheet - Page 112

• Manufacturer Part Number: AT86RF232
• Manufacturer: Atmel Corporation

Specifications of AT86RF232

• Max. Operating Frequency: 0 MHz
• Crypto Engine: AES
• Operating Voltage (vcc): 1.8 to 3.6
• Frequency Band: 2.4 GHz
• Max Data Rate (mb/s): 0.25
• Antenna Diversity: Yes
• External Pa Control: Yes
• Power Output (dbm): 3
• Receiver Sensitivity (dbm): -100
• Receive Current Consumption (ma): 11.8
• Transmit Current Consumption (ma): 13.8
• Link Budget (dbm): 103

9.5.4 Interrupt Handling
9.5.5 Register Description
112
AT86RF232
Bit
0x11
Read/Write
Reset value
Bit
0x11
Read/Write
Reset value
A supply voltage drop below the configured threshold value is indicated by an interrupt
IRQ_7 (BAT_LOW), see
No interrupt is generated when:
 The battery voltage is under the default 1.8V threshold at power-on (BATMON_OK
 A new threshold is set, which is still above the current supply voltage (BATMON_OK
When the battery voltage is close to the programmed threshold voltage, noise or
temporary voltage drops may generate unwanted interrupts. To avoid this:
 Disable the IRQ_7 (BAT_LOW) in register 0x0E (IRQ_MASK) and treat the battery
 Set a lower threshold value.
Register 0x11 (BATMON):
The BATMON register signals and configures the battery monitor to observe the supply
voltage at pin 28 (EVDD).
Figure 9-10. Register BATMON.
 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. BATMON_OK.
Register Bits
BATMON_OK
Note:
was never one), or
remains zero).
as empty, or
1.
The Atmel AT86RF232 IRQ_7 (BAT_LOW) interrupt is issued only if
BATMON_OK changes from one to zero.
R/W
R
7
0
3
0
reserved
Section
Value
0
1
R/W
R/W
6
0
2
0
6.6.
Description
The battery voltage is below the threshold
The battery voltage is above the threshold
BATMON_VTH
BATMON_OK
R/W
R
5
0
1
1
BATMON_HR
R/W
R/W
4
0
0
0
8321A–MCU Wireless–10/11
BATMON
BATMON