參數(shù)資料
型號(hào): EM2420TR
廠商: Electronic Theatre Controls, Inc.
英文描述: 2.4 GHz IEEE 802.15.4 / ZigBee RF Transceiver
中文描述: 2.4 GHz IEEE 802.15.4標(biāo)準(zhǔn)/ ZigBee的射頻收發(fā)器
文件頁(yè)數(shù): 43/89頁(yè)
文件大?。?/td> 1758K
代理商: EM2420TR
EM2420
Ember Part Number: 120-0049-000
C
EM2420 Datasheet
Page 43 of 89
Wait for the specified crystal oscillator
start-up time, or poll the
XOSC16M_STABLE status bit
IDLE
[0]
SXOSCON
STXON
XOSC_ON
[1]
Wait until voltage regulator
has powered up
Voltage Regulator Off
VREG_EN
set low
VREG_EN
set high
Chip Reset
(pin or register)
All States
SXOSCOFF
command strobe
All States
except IDLE
SRFOFF
TX_CALIBRATE
[32]
All RX states
TX_PREAMBLE
[34, 35 and 36]
8 or 12 symbol
periods later
Preamble and SFD
is transmitted
TX_FRAME
[37, 38 and 39]
TXFIFO Data
is transmitted
RX_CALIBRATE
[2 and 40]
Tasmsincmltd
S
SXN
RX_SFD_SEARCH
[3, 4, 5 and 6]
RX_FRAME
[16 and 40]
12 symbol periods
later
SFD
found
rFamerecevedo
Automatic or manual
acknowledge request
TX_ACK_CALIBRATE
[48]
12 symbol
periods later
TX_ACK_PREAMBLE
[49, 50 and 51]
TX_ACK
[52, 53 and 54]
Acknowledge
completed
RX_WAIT
[14]
Crystal oscillator disabled,
register access enabled,
FIFO / RAM access disabled
STXON
o
(STXONCCA and
CCA)
Figure 23. Radio control states
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