CC2550_13 Datasheet, PDF (50/61 Pages) Texas Instruments – Low-Cost Low-Power 2.4 GHz RF Transmitter

CC2550
0x35 (0xF5): MARCSTATE – Main Radio Control State Machine State
Bit Field Name
Reset R/W Description
7:5 Reserved
4:0 MARC_STATE[4:0]
R0
R
Main Radio Control FSM State
Value
State name
State (Figure 13, page 25)
0 (0x00) SLEEP
SLEEP
1 (0x01) IDLE
IDLE
2 (0x02) XOFF
XOFF
3 (0x03) VCOON_MC
MANCAL
4 (0x04) REGON_MC
MANCAL
5 (0x05) MANCAL
MANCAL
6 (0x06) VCOON
FS_WAKEUP
7 (0x07) REGON
FS_WAKEUP
8 (0x08) STARTCAL
CALIBRATE
9 (0x09) BWBOOST
SETTLING
10 (0x0A) FS_LOCK
SETTLING
11 (0x0B) IFADCON
SETTLING
12 (0x0C) ENDCAL
CALIBRATE
13 (0x0D) NA
NA
14 (0x0E) NA
NA
15 (0x0F) NA
NA
16 (0x10) NA
NA
17 (0x11) NA
NA
18 (0x12) FSTXON
FSTXON
19 (0x13) TX
TX
20 (0x14) TX_END
TX
21 (0x15) NA
NA
22 (0x16) TX_UNDERFLOW TX_UNDERFLOW
Note: it is not possible to read back the SLEEP or XOFF state
numbers because setting CSn low will make the chip enter the
IDLE mode from the SLEEP or XOFF states.
0x38 (0xF8): PKTSTATUS – Current GDOx Status and Packet Status
Bit Field Name
7:2 Reserved
1 Reserved
0 GDO0
Reset R/W Description
R0 Defined in the transceiver version
R0
R
Current GDO0 value. Note: the reading gives the non-inverted
value irrespective what IOCFG0.GDO0_INV is programmed to.
It is not recommended to check for PLL lock by reading
PKTSTATUS[0] with GDO0_CFG = 0x0A.
SWRS039B
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