CC1000
SWRS048A Page 40 of 55
MAIN Register (00h)
REGISTER
NAME
Default
value
Active
Description
MAIN[7]
RXTX
-
-
RX/TX switch, 0 : RX , 1 : TX
MAIN[6]
F_REG
-
-
Selection of Frequency Register, 0 : Register A, 1 :
Register B
MAIN[5]
RX_PD
-
H
Power Down of LNA, Mixer, IF, Demodulator, RX part of
Signal Interface
MAIN[4]
TX_PD
-
H
Power Down of TX part of Signal Interface, PA
MAIN[3]
FS_PD
-
H
Power Down of Frequency Synthesiser
MAIN[2]
CORE_PD
-
H
Power Down of Crystal Oscillator Core
MAIN[1]
BIAS_PD
-
H
Power Down of BIAS (Global_Current_Generator)
and Crystal Oscillator Buffer
MAIN[0]
RESET_N
-
L
Reset, active low. Writing RESET_N low will write default
values to all other registers than MAIN. Bits in MAIN do
not have a default value, and will be written directly
through the configurations interface. Must be set high to
complete reset.
FREQ_2A Register (01h)
REGISTER
NAME
Default
value
Active
Description
FREQ_2A[7:0] FREQ_A[23:16] 01110101 - 8
MSB of frequency control word A
FREQ_1A Register (02h)
REGISTER
NAME
Default
value
Active
Description
FREQ_1A[7:0] FREQ_A[15:8] 10100000 - Bit
15 to 8 of frequency control word A
FREQ_0A Register (03h)
REGISTER
NAME
Default
value
Active
Description
FREQ_0A[7:0]
FREQ_A[7:0]
11001011
-
8 LSB of frequency control word A
FREQ_2B Register (04h)
REGISTER
NAME
Default
value
Active
Description
FREQ_2B[7:0] FREQ_B[23:16] 01110101 - 8
MSB of frequency control word B
FREQ_1B Register (05h)
REGISTER
NAME
Default
value
Active
Description
FREQ_1B[7:0] FREQ_B[15:8] 10100101 - Bit
15 to 8 of frequency control word B
FREQ_0B Register (06h)
REGISTER
NAME
Default
value
Active
Description
FREQ_0B[7:0]
FREQ_B[7:0]
01001110
-
8 LSB of frequency control word B
FSEP1 Register (07h)
REGISTER
NAME
Default
value
Active
Description
FSEP1[7:3] -
-
-
Not
used
FSEP1[2:0] FSEP_MSB[2:0] 000
- 3
MSB of frequency separation control
FSEP0 Register (08h)
REGISTER
NAME
Default
value
Active
Description
FSEP0[7:0] FSEP_LSB[7:0]
01011001 - 8
LSB of frequency separation control
