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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標準/ ZigBee的射頻收發(fā)器 |
| 文件頁數(shù)： | 27/89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 27 of 89
chip functions such as register or FIFO
access.
Bit #
Name
Description
7
-
Reserved, ignore value
6
XOSC16M_STABLE
Indicates whether the 16 MHz oscillator is running or not
0 : The 16 MHz crystal oscillator is not running
1 : The 16 MHz crystal oscillator is running
5
TX_UNDERFLOW
Indicates whether an FIFO underflow has occurred during
transmission. Must be cleared manually with a
SFLUSHTX
command strobe.
0 : No underflow has occurred
1 : An underflow has occurred
4
ENC_BUSY
Indicates whether the encryption module is busy
0 : Encryption module is idle
1 : Encryption module is busy
3
TX_ACTIVE
Indicates whether RF transmission is active
0 : RF Transmission is idle
1 : RF Transmission is active
2
LOCK
Indicates whether the frequency synthesizer PLL is in lock or not
0 : The PLL is out of lock
1 : The PLL is in lock
1
RSSI_VALID
Indicates whether the RSSI value is valid or not.
0 : The RSSI value is not valid
1 : The RSSI value is valid, always true when reception has been
enabled at least 8 symbol periods (128 us)
0
Table 5. Status byte returned during address transfer and TXFIFO writing
-
Reserved, ignore value
Command strobes
Command strobes may be viewed as
single byte instructions to the
EM2420
. By
addressing a command strobe register
internal sequences will be started. These
commands must be used to enable the
crystal oscillator, enable receive mode,
start decryption etc. All 15 command
strobes are listed in Table 11 on page 64.
When the crystal oscillator is disabled
(IDLE state in Figure 23 on page 43), only
the
SXOSCON
command strobe may be
used. All other command strobes will be
ignored and will have no effect. The
crystal oscillator must stabilize (see the
XOSC16M_STABLE
status bit in Table 5)
before other command strobes are
accepted.
The command strobe register is accessed
in the same way as for a register write
operation, but no data is transferred. That
is, only the RAM/Register bit (set to 0),
R/W bit (set to 0) and the 6 address bits
(in the range 0x00 through 0x0E) are
written. A command strobe may be
followed by any other SPI access without
pulling
CSn
high, and is executed on the
last falling edge on
SCLK
.
RAM access
The internal 368 byte RAM may be
accessed through the SPI interface. Single
or multiple bytes may be read or written
sending the address part (2 bytes) only
once. The address is then automatically
incremented by the
EM2420
hardware for
each new byte. Data is read and written
one byte at a time, unlike register access
where 2 bytes are always required after
each address byte.
The crystal oscillator must be running
when accessing the RAM.
The RAM/Register bit must be set high to
enable RAM access. The 9 bit RAM
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| EM2420EK | 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 RF Transceiver |
| EM2420-RTB | 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)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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-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)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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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