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參數(shù)資料
| 型號： | MRF24J40-I |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | IEEE 802.15.4⑩ 2.4 GHz RF Transceiver |
| 中文描述： | IEEE 802.15.4標(biāo)準(zhǔn)⑩2.4 GHz射頻收發(fā)器 |
| 文件頁數(shù)： | 21/66頁 |
| 文件大?。?/td> | 748K |
| 代理商： | MRF24J40-I |
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2006 Microchip Technology Inc.
Advance Information
DS39776A-page 19
MRF24J40
5.0
IEEE 802.15.4-2003
5.1
Overview
Before discussing the use of the MRF24J40, it may be
helpful to review the structure of a typical data frame.
Users requiring more information should refer to the
IEEE 802.15.4 Standard.
5.2
Packet Format
Normal IEEE 802.15.4 compliant packets are between 5
and 127 bytes long. They are made up of several possi-
ble fields: destination address information, source
address information, a length field, data payload and a
Cyclic Redundancy Check (CRC). Additionally, a 4-byte
preamble field and Start-of-Frame Delimiter (SFD) byte
are appended to the beginning of the packet. Thus, traffic
seen on the air will appear as shown in Figure 5-1.
FIGURE 5-1:
PACKET FORMAT
Number
of
Bytes
4
Preamble
Field
Comments
SFD
1
Packet Length
1
Frame Control
2
Destination
Address
Information
0/4/10
Source Address
Information
0/2/4/8/
10
Sequence Number
1
Data Payload
0-122
FCS
2
Frame check sequence – CRC
Used to
calculate
FCS
Filtered
out by
module
Start-of-Frame
delimiter – Filtered
out by module
Short or long address of the destination
device plus the PAN identifier.
Length selected in the frame control.
Short or long address of the source
device plus the PAN identifier.
Length selected in the frame control.
Used to calculate
packet length
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MRF24J40-IMM | IEEE 802.15.4⑩ 2.4 GHz RF Transceiver |
| MRSM75 | Rotation detection MR sensor |
| MRUS51S | Micro power Built-in IC ultra-minimum MR sensor |
| MS-012AA | SOIC: 8−LEAD (POWER ICS ONLY) |
| MS1022 | PNP RF Amplifier Transistor Surface Mount |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MRF24J40-I/ML | 功能描述:射頻收發(fā)器 2.4 Ghz IEEE/ZigBee RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
| MRF24J40-I/ML | 制造商:Microchip Technology Inc 功能描述:ZIGBEE Transceiver IC |
| MRF24J40-I/T | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:IEEE 802.15.4? 2.4 GHz RF Transceiver |
| MRF24J40-IMM | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:IEEE 802.15.4⑩ 2.4 GHz RF Transceiver |
| MRF24J40MA | 制造商:Microchip Technology Inc 功能描述:WIRELESS TRANCEIVER MODULE, Supply Voltage Min:2.4V, Supply Voltage Max:3.6V, MS |
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