SmartRF ® CC2420
Table of contents
Abbreviations_____________________________________________________________________5
References _______________________________________________________________________6
Features _________________________________________________________________________7
Absolute Maximum Ratings _________________________________________________________8
Operating Conditions ______________________________________________________________8
Electrical Specifications ____________________________________________________________9
Pin Assignment __________________________________________________________________14
Circuit Description _______________________________________________________________16
Application Circuit _______________________________________________________________18
Input / output matching ___________________________________________________________18
Bias resistor ____________________________________________________________________18
Crystal ________________________________________________________________________18
Voltage regulator________________________________________________________________18
Power supply decoupling and filtering _______________________________________________18
IEEE 802.15.4 Modulation Format __________________________________________________22
Configuration Overview ___________________________________________________________23
Evaluation Software ______________________________________________________________24
4-wire Serial Configuration and Data Interface________________________________________25
Register access _________________________________________________________________25
Status byte _____________________________________________________________________26
Command strobes _______________________________________________________________27
RAM access____________________________________________________________________27
FIFO access ____________________________________________________________________29
Multiple SPI access ______________________________________________________________29
Microcontroller Interface and Pin Description ________________________________________30
Configuration interface ___________________________________________________________30
Receive mode __________________________________________________________________31
RXFIFO overflow _______________________________________________________________31
Transmit mode__________________________________________________________________33
General control and status pins _____________________________________________________33
Demodulator, Symbol Synchroniser and Data Decision _________________________________33
Frame Format ___________________________________________________________________34
Synchronisation header ___________________________________________________________34
Length field ____________________________________________________________________35
MAC protocol data unit___________________________________________________________35
Frame check sequence____________________________________________________________36
RF Data Buffering ________________________________________________________________37
Buffered transmit mode___________________________________________________________37
Buffered receive mode ___________________________________________________________38
Un-buffered, serial mode__________________________________________________________38
Address Recognition ______________________________________________________________39
Acknowledge Frames _____________________________________________________________40
Radio control state machine ________________________________________________________42
MAC Security Operations (Encryption and Authentication) _____________________________44
Chipcon AS SmartRF® CC2420 Preliminary Datasheet (rev 1.2), 2004-06-09
Page 2 of 87
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
