TDA5235 Datasheet, PDF (103/259 Pages) Infineon Technologies AG – Enhanced Sensitivity Double-Configuration Receiver with Digital Baseband Processing

WU Search With
Configuration B
From Compare of
Config A
TDA5235
Functional Description
To Init Loop
Counter / Idle of
Config A
4
Modulation
Switching CFG B
Modulation Selection
Depending On Register
Setting
5
Init With
CFG B
Initialize RX-Part
Configuration B
Permanent WU Search Mode Enable== 0
Permanent WU Search Mode Enable == 1
Const On Time
Fast Fall Back To Sleep
ON Time elapsed == 0
WU Found== 0
7
WU Search
CFG B COOT
Search For A Configurated
Wake Up Criteria
Const On Off
ON Time elapsed == X
WU Found == 1
7
WU Search
CFG B FFTS
Search For A Configurated
Wake Up Criteria
Fast Fall Back
WU Search Finished == 0
ON Time elapsed == 1 WU Search Finished == 1 WU Search Finished == 1
WU Found == 0
WU Found == 1
WU Found == 0
9
Compare
Compare Loop Counter
Against Number Of
Configs
(CfgLoopCounter == CfgNr)
8
Store
Channel
Store The Current Channel
Configuration Into Actual
Channel Register
Generating WU CFG B
Interrupt If Not Masked
12 _{Run Mode}
Self Polling
Chip is permanently
active
Figure 74 Wake-up Search with Configuration B
Data Sheet
103
V1.0, 2010-02-19