CC1110Fx / CC1111Fx
0xDF14: MCSM0 – Main Radio Control State Machine Configuration
Bit
Field Name
Reset
R/W
Description
7:6
5:4
-
R0
Not used
FS_AUTOCAL[1:0]
00
R/W
Select calibration mode (when to calibrate)
00
01
10
11
Never (manually calibrate using SCAL strobe)
When going from IDLE to RX or TX (or FSTXON)
When going from RX or TX back to IDLE automatically
Every 4th time when going from RX or TX to IDLE automatically
Reserved. Refer to SmartRF® Studio software [9] for settings.
Reserved. Refer to SmartRF® Studio software [9] for settings.
3
0
R/W
R/W
R/W
2
1
1:0
CLOSE_IN_RX[1:0]
00
Sets RX attenuation. Used in order to avoid saturation in RX when two or
more chips are close (within ~3 m).
RX attenuation, typical values:
00
01
10
11
0 dB
6 dB
12 dB
18 dB
0xDF15: FOCCFG – Frequency Offset Compensation Configuration
Bit
Field Name
Reset
R/W
Description
7
-
R0
Not used
6
1
1
R/W
R/W
Reserved. Always write 0
5
FOC_BS_CS_GATE
FOC_PRE_K[1:0]
If set, the demodulator freezes the frequency offset compensation and
clock recovery feedback loops until the CARRIER_SENSE signal goes
high.
4:3
10
R/W
The frequency compensation loop gain to be used before a sync word is
detected.
00
01
10
11
K
2K
3K
4K
2
FOC_POST_K
FOC_LIMIT[1:0]
1
R/W
R/W
The frequency compensation loop gain to be used after a sync word is
detected.
0
1
Same as FOC_PRE_K
K/2
1:0
10
The saturation point for the frequency offset compensation algorithm:
00
01
10
11
±0 (no frequency offset compensation)
±BWCHAN / 8
±BW CHAN / 4
±BW CHAN / 2
SWRS033E
Page 216 of 239
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
