at86rf211 ATMEL Corporation, at86rf211 Datasheet - Page 32

• Manufacturer Part Number: at86rf211
• Description: Fsk Transceiver For Ism Radio Applications
• Manufacturer: ATMEL Corporation

Frequency Registers
32
AT86RF211
Table 9. Frequency Registers
Note:
•
The FSK modulation is completely integrated. Two registers have to be programmed
(default F0 and F1) to allow "0" and "1" transmission.
The frequency register selection depends on the control register programming and on
the DATAMSG pin:
There is no simple relationship between frequency registers and the exact frequency. Atmel
provides a tool to program them on a production bench.
RXTX
0
0
0
0
1
1
1
1
Name
Frequency Registers Selection
F0
F1
F2
F3
Name
nbit
1. F0, F1, F2 and F3 registers must be programmed before using the device.
Number
of bits
32
32
32
32
RXFS
00
01
10
11
XX
XX
XX
XX
Comments
Frequency code value F0
default register in TX mode ("0" code in FSK modulation).
Frequency code value F1
default register in TX mode ("1" code frequency in FSK modulation).
Frequency code value F2
default register in RX mode.
Frequency code value F3
TXFS
X
X
X
X
0
0
1
1
DATAMSG
X
X
X
X
0
1
0
1
F0, F1, F2, F3
31-0
Mode
Receive LO is F0
Receive LO is F1
Receive LO is F2
Receive LO is F3
Transmit "0" on F0
Transmit "1" on F1
Transmit "0" on F2
Transmit "1" on F3
1942C–WIRE–06/02