TDA5230 Datasheet, PDF (45/186 Pages) Infineon Technologies AG – Universal Low Power ASK/FSK Single Conversion Multi-Channel Image-Reject Receiver

TDA523x
Functional Description
RX-RUN=0
RX-RUN == 0
1
IDLE
Chip is idle
RX-RUN == 1
From Run Mode Self Polling
2
Wait
Wait Till Startup
Sequencer
Has Finished
Sequencer Finished == 0
Sequencer Finished == 1
3
Init
Loop Counter
Loop Counter Is
Initialized
Permanent WU Search Mode Enable == 0
Permanent WU Search Mode Enable == 1
WU Search With
Configuration A
4 Modulation
Switching CFG A
Modulation Selection
Depending On Register
Setting
5
Init With
CFG A
Initialize RX-Part
Configuration A
Loop Counter == 10
Loop Counter == 11
6
Load
11
Load
11
Load
S1R1 Channel
S2R2 Channel
S3R3 Channel
Initialize RX-Part
Multi Channel A
Initialize RX-Part
Multi Channel A
Initialize RX-Part
Multi Channel A
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 A COOT
Search For A Configurated
Wake Up Criteria
Const On Off
7 _{WU Search}
CFG A 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
ON Time elapsed == X
WU Found == 1
Counter Equal ANOC == 1
Dual Config Enable == 1
9
Compare
Compare Loop Counter
Against Number Of
Channels
Loop Counter == ANOC
Dual Config Enable == 0
Loop Counter <> ANOC
10 _Increment
Loop Counter
Incrementation Of
The Loop Counter
Figure 20
To Init Loop Counter
of Config B
8
Store
Channel
Store The Current Channel
Configuration Into Actual
Channel Register
12 _{Run Mode}
Self Polling
Chip is permanently
active
Generating WU CFG A
Interrupt If Not Masked
Wake up Search with Configuration A
From Compare of
Config B
Data Sheet
41
Version 4.0, 2007-06-01