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CC2500-RTR1 数据表(PDF) 82 Page - Texas Instruments

部件名 CC2500-RTR1
功能描述  Low-Cost Low-Power 2.4 GHz RF Transceiver
PDF  99 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

CC2500-RTR1 数据表(HTML) 82 Page - Texas Instruments

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CC2500
SWRS040C
Page 82 of 89
0x33 (0xF3): LQI – Demodulator Estimate for Link Quality
Bit
Field Name
Reset
R/W
Description
7
CRC_OK
R
The last CRC comparison matched. Cleared when
entering/restarting RX mode. Only valid if
PKTCTRL0.CC2400_EN=1.
6:0
LQI_EST[6:0]
R
The Link Quality Indicator estimates how easily a received signal
can be demodulated. Calculated over the 64 symbols following
the sync word.
0x34 (0xF4): RSSI – Received Signal Strength Indication
Bit
Field Name
Reset
R/W
Description
7:0
RSSI
R
Received signal strength indicator
0x35 (0xF5): MARCSTATE – Main Radio Control State Machine State
Bit
Field Name
Reset
R/W
Description
7:5
Reserved
R0
4:0
MARC_STATE[4:0]
R
Main Radio Control FSM State
Value
State name
State (Figure 15, page 39)
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)
RX
RX
14 (0x0E)
RX_END
RX
15 (0x0F)
RX_RST
RX
16 (0x10)
TXRX_SWITCH
TXRX_SETTLING
17 (0x11)
RXFIFO_OVERFLOW
RXFIFO_OVERFLOW
18 (0x12)
FSTXON
FSTXON
19 (0x13)
TX
TX
20 (0x14)
TX_END
TX
21 (0x15)
RXTX_SWITCH
RXTX_SETTLING
22 (0x16)
TXFIFO_UNDERFLOW
TXFIFO_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.



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