TDA5230 Datasheet, PDF (52/186 Pages) Infineon Technologies AG – Universal Low Power ASK/FSK Single Conversion Multi-Channel Image-Reject Receiver

TDA523x
Functional Description
1 _Modulation
Switching
All Operations Are Done With The ^{Modulation Selection}
Depending On Register
Setting
Wake Up Configuration
3
FIFO locked
Wait Till FIFO Read Out
fifolk == 1
fifolk == 0
2
INIT
fifolk == 1
Init FIFO =
Init FIFO@Cycle Start
4
fifolk == 0
Wait
Start ToTim Timer (If
Enabled)
ToTim Timeout == 0
Symbol Sync == 1
Symbol Sync=0
To Self Polling Mode
(WU Search With Configuration A)
ToTim Timeout == 1
Symbol Sync == X
ToTim Timeout == 0
Symbol Sync == 0
ToTim Timeout == 1
Symbol Sync == X
It Is Possible To Disable
The Timeout Feature
5
Wait
Wait Till Frame Start
Is Found
Frame Sync == 1
6 INIT FIFO
Init FIFO =
Init FIFO@FSYNC
Frame Sync == 0
Generating A Frame Start
Interrupt If Not Masked
Figure 22
7
Check
MID Setup
Check The MID Setup
Register
MID Screening enable == 0
MID Screening enable == 1
8
Init MID
Scanning Unit
Initialize The MID
Scanning Unit
9
Wait
Store RX Data Into FIFO
Wait For Scan Finish
MID Scanning Finished == 0
MID Scanning Finished == 1
10 _{Checking ID}
MID Found == 0
Scanning Result
Store RX Data Into FIFO
Analyze The Scanning
Result
MID Found == 1
11 _{EOM Check}
EOM Found == 1
Store RX Data Into FIFO
Check For EOM
Run Mode Self Polling
Generating A MID Found
Interrupt If Not Masked
Generating A EOM
Interrupt If Not Masked
Data Sheet
48
Version 4.0, 2007-06-01