AT86RF232 Atmel Corporation, AT86RF232 Datasheet - Page 117

• 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

8321A–MCU Wireless–10/11
Bit
0x12
Read/Write
Reset value
Bit
0x12
Read/Write
Reset value
Register 0x12 (XOSC_CTRL):
The XOSC_CTRL register controls the operation of the crystal oscillator.
Figure 9-14. Register XOSC_CTRL.
 Bit 7:4 - XTAL_MODE
The register bits XTAL_MODE sets the operating mode of the crystal oscillator.
Table 9-14. XTAL_MODE.
Register Bits
XTAL_MODE
For normal operation the default value is set to XTAL_MODE = 0xF after reset. Using
an external clock source it is recommended to set XTAL_MODE = 0x5.
 Bit 3:0 - XTAL_TRIM
The register bits XTAL_TRIM controls internal capacitance arrays connected to pin 26
(XTAL1) and pin 25 (XTAL2).
Table 9-15. XTAL_TRIM.
Register Bits
XTAL_TRIM
R/W
R/W
7
1
3
0
Value
Value
0xF
0x5
0x0
R/W
R/W
6
1
2
0
Description
Internal crystal oscillator disabled, use external reference
frequency
Internal crystal oscillator enabled and XOSC voltage
regulator enabled
All other values are reserved
Description
A capacitance value in the range from 0pF to 4.5pF is
selectable with a resolution of 0.3pF.
Valid values are [0xF, 0xE, …, 0x0].
XTAL_MODE
XTAL_TRIM
R/W
R/W
5
1
1
0
R/W
R/W
4
1
0
0
AT86RF232
XOSC_CTRL
XOSC_CTRL
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