TDA5235 Datasheet, PDF (65/259 Pages) Infineon Technologies AG – Enhanced Sensitivity Double-Configuration Receiver with Digital Baseband Processing

TDA5235
Functional Description
2-Byte Organized Message ID:
In this mode two bytes are merged to define an ID Pattern. Up to 10 patterns are
possible.
8
x_MID0
8
x_MID1
8
x_MID2
8
x_MID3
8
x_MID4
8
x_MID5
8
x_MID6
8
x_MID7
8
x_MID8
8
x_MID9
8
x_MID 10
8
x_MID 11
8
x_MID 12
8
x_MID 13
8
x_MID 14
8
x_MID 15
8
x_MID 16
8
x_MID 17
8
x_MID 18
8
x_MID 19
MID0:MID1
16
MID2:MID3
16
MID4:MID5
16
MID6:MID7
16
MID8:MID9
16
MID10:MID11 16
MID12:MID13 16
MID14:MID15 16
MID16:MID17 16
Combiner
MID18:MID19 16
Bit Counter
Scan Start Position
Reached
Scan End Position
Reached
Organization
Control-
FSM
MID found
MID Scanning finished
Interface to
Master FSM
Init MID Scanner
Enable MID Scanning
Figure 36 2-Byte Message ID Scanning
from
Digital-Receiver
ID Position Configuration:
It is possible to choose which part of the incoming data stream is compared against the
stored MIDs. The register x_MIDC0 contains the Scan Start Position. If the Bit Counter
detects the Scan Start Position, the Control FSM enables the Scanner. The register
x_MIDC1 contains the number of bytes to scan. During the observation period, the
Data Sheet
65
V1.0, 2010-02-19