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| 型號： | EM2420DK |
| 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 |
| 文件頁數(shù)： | 39/89頁 |
| 文件大?。?/td> | 1758K |
| 代理商： | EM2420DK |
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EM2420
Ember Part Number: 120-0049-000
C
EM2420 Datasheet
Page 39 of 89
Receive mode:
Incoming / outgoing
RF data
SFD
FIFOP
Transmit mode:
Preamble
FIFO
(from uC)
b0
b1
b2
b3
b4
b5
b6
b7
b8
b9
b10 b11
s0
s1
FIFOP
FIFO
(fro
m EM2420
)
b0
b1
b2
b3
b4
s2
b8
b9
b10 b11
4 us
Figure 20. Unbuffered test mode, pin activity
Address Recognition
The
EM2420
includes hardware support for
address recognition, as specified in [1].
Hardware address recognition may be
enabled
/
disabled
MDMCTRL0.ADR_DECODE
control bit.
using
the
Address recognition is based on the
following requirements, listed from section
7.5.6.2 in [1]:
The frame type subfield shall not
contain an illegal frame type
If the frame type indicates that the
frame is a beacon frame, the
source PAN identifier shall match
macPANId unless macPANId is
equal to 0xFFFF, in which case
the
beacon
frame
accepted regardless of the source
PAN identifier.
shall
be
If a destination PAN identifier is
included in the frame, it shall
match macPANId or shall be the
broadcast
PAN
(0xFFFF).
identifier
If a short destination address is
included in the frame, it shall
match either macShortAddress or
the broadcast address (0xFFFF).
Otherwise
if
destination address is included in
the
frame,
it
aExtendedAddress.
an
extended
shall
match
If only source addressing fields
are included in a data or MAC
command frame, the frame shall
only be accepted if the device is a
PAN coordinator and the source
PAN
identifier
macPANId.
matches
If any of the above requirements are not
satisfied and address recognition is
enabled, the
EM2420
will disregard the
incoming frame and flush the data from
the RXFIFO. Only data from the rejected
frame is flushed, data from previously
accepted frames may still be in the
RXFIFO.
Incoming frames with reserved frame
types (FCF frame type subfield is 4, 5, 6 or
7)
is
however
RESERVED_FRAME_MODE
control bit in
MDMCTRL0
is set. In this case, no further
address recognition is performed on these
frames. This option is included for future
expansions
of
the
standard.
accepted
if
the
IEEE
802.15.4
If a frame is rejected, the
EM2420
will only
start searching for a new frame after the
rejected frame has been completely
received (as defined by the length field) to
avoid detecting false SFDs within the
frame.
The
control bit must be correctly set, since
parts of the address recognition procedure
MDMCTRL0.PAN_COORDINATOR
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| EM2420-RTR | 功能描述:IC RF TXRX ZIGBEE 2.4GHZ 48-QLP RoHS:是 類別:RF/IF 和 RFID >> RF 收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數(shù)據(jù)傳輸率 - 最大:54Mbps 調(diào)制或協(xié)議:* 應(yīng)用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數(shù)據(jù)接口:PCB，表面貼裝 存儲容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件 |
| EM2420-STB | 功能描述:IC RF TXRX ZIGBEE 2.4GHZ 48-QLP RoHS:否 類別:RF/IF 和 RFID >> RF 收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數(shù)據(jù)傳輸率 - 最大:54Mbps 調(diào)制或協(xié)議:* 應(yīng)用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數(shù)據(jù)接口:PCB，表面貼裝 存儲容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件 |
| EM2420-STR | 功能描述:IC RF TXRX ZIGBEE 2.4GHZ 48-QLP RoHS:否 類別:RF/IF 和 RFID >> RF 收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數(shù)據(jù)傳輸率 - 最大:54Mbps 調(diào)制或協(xié)議:* 應(yīng)用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數(shù)據(jù)接口:PCB，表面貼裝 存儲容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件 |
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