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參數(shù)資料
| 型號： | CC2420 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver |
| 中文描述： | 2.4 GHz IEEE 802.15.4標(biāo)準(zhǔn)/ ZigBee功能的RF收發(fā)器 |
| 文件頁數(shù)： | 32/87頁 |
| 文件大?。?/td> | 1418K |
| 代理商： | CC2420 |
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SmartRF
CC2420
SFLUSHRX command strobe should be
issued twice to ensure that the
SFD
pin
goes back to its idle state.
For security enabled frames, the MAC
layer must read the source address of the
received frame before it can decide which
key to use to decrypt or authenticate. This
data must therefore not be overwritten
even if it has been read out of the RXFIFO
by
the
microcontroller.
SECCTRL0.RXFIFO_PROTECTION
control
bit is set,
CC2420
also protects the frame
header of security enabled frames until
decryption has been performed. If no MAC
security is used or if it is implemented
outside the
CC2420
, this bit may be cleared
to achieve optimal use of the RXFIFO.
If
the
Preamble
SFD
Length
Data received over RF
SFD Pin
FIFO Pin
FIFOP Pin, if threshold
higher than frame length
FIFOP Pin, if threshold
lower than frame length
SFDdeLenghbtereeved
byereceved
Preamble
SFD
Length
Data received over RF
SFD Pin
FIFO Pin
FIFOP Pin
Adcompeed
MAC Protocol Data Unit (MPDU) with correct address
MAC Protocol Data Unit (MPDU) with wrong address
Address
recognition OK
Address
recognition fails
Figure 12. Pin activity examples during receive
SI
-
ADDR
TXFIFO
PSDU0
PSDU1
-
SO
-
-
-
Length
Status
-
-
PSDU5
PSDU2
PSDU3
RSSI
CSn
SFD
SCLK
FIFOP
FIFO
-
PSDU4
FFOgoeslowwhen
sats
readou o as bye
aslongasnumbe o
byes>FFOP_THR
-
FCS/Corr
Figure 13. Example of pin activity when reading RXFIFO.
Chipcon AS
SmartRF
CC2420 Preliminary Datasheet (rev 1.2), 2004-06-09
Page 32 of 87
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CC2420/T&R | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver |
| CC2420/TR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver |
| CC2420DBK | 功能描述:Zigbee/802.15.4開發(fā)工具 CC2420 DEMO KIT 2 DEMO BOARDS RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:EM35x 頻率:2.4 GHz 接口類型:USB 工作電源電壓: |
| CC2420DK | 功能描述:Zigbee/802.15.4開發(fā)工具 CC2420 DEVELOPMENT KIT RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:EM35x 頻率:2.4 GHz 接口類型:USB 工作電源電壓: |
| CC2420EMK | 功能描述:Zigbee/802.15.4開發(fā)工具 CC2420 EVALUATION KT (2)PCBs & (2)ANTENNA RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:EM35x 頻率:2.4 GHz 接口類型:USB 工作電源電壓: |
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