CC1050PWR Datasheet, PDF (35/40 Pages) Texas Instruments – Single Chip Very Low Power RF Transmitter

Not Recommended for New Designs
CC1050
MODEM0 Register (11h)
REGISTER
NAME
MODEM0[7]
MODEM0[6:4]
-
BAUDRATE[2:0]
MODEM0[3:2] DATA_FORMAT[1:0]
MODEM0[1:0] XOSC_FREQ[1:0]
Default
value
-
010
01
00
Active
-
-
-
-
Description
Not used
000 : 0.6 kBaud
001 : 1.2 kBaud
010 : 2.4 kBaud
011 : 4.8 kBaud
100 : 9.6 kBaud
101 : 19.2 kBaud
110 : 38.4 kBaud
111 : 76.8 kBaud
00 : NRZ operation.
01 : Manchester operation
10 : Transparent Asyncronous UART operation
11 : Not used
Selection of XTAL frequency range
00 : 3MHz - 4MHz crystal, 3.6864MHz
recommended
01 : 6MHz - 8MHz crystal, 7.3728MHz
recommended
10 : 9MHz - 12MHz crystal, 11.0592 MHz
recommended
11 : 12MHz - 16MHz crystal, 14.7456MHz
recommended
FSCTRL Register (13h)
REGISTER
NAME
FSCTRL[7:4]
FSCTRL[3:1]
FSCTRL[0]
-
FS_RESET_N
Default
value
-
1
Active
-
L
Description
Not used
Reserved
Separate reset of frequency synthesizer
PRESCALER Register (1Ch)
REGISTER
NAME
PRESCALER[7:6] PRE_SWING[1:0]
Default
value
00
Active Description
- Prescaler swing. Fractions for
PRE_CURRENT[1:0] = 00
PRESCALER[5:4] PRE_CURRENT
00
[1:0]
PRESCALER[3]
BYPASS_R
0
PRESCALER[2] DISCONNECT_C
0
PRESCALER[1:0]
-
-
00 : 1 * Nominal Swing
01 : 2/3 * Nominal Swing
10 : 7/3 * Nominal Swing
11 : 5/3 * Nominal Swing
- Prescaler current scaling
00 : 1 * Nominal Current
01 : 2/3 * Nominal Current
10 : 1/2 * Nominal Current
11 : 2/5 * Nominal Current
H Bypass the resistor in the PLL loop filter
0 : Not bypassed
1 : Bypassed
- Disconnect the capacitor in the PLL loop filter
0 : Capacitor connected
1 : Capacitor disconnected. Use for data rate
38.4 and 76.8 kBaud only.
- Not used
SWRS044
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