BCM4330 Preliminary Data Sheet
RDS/RBDS
RDS/RBDS
The BCM4330 integrates a RDS/RBDS modem and codec, the decoder includes programmable filtering and
buffering functions, and the encoder includes the option to encode messages to PS or RT frame format with
programmable scrolling in PS mode. The RDS/RBDS data can be read out in receive mode or delivered in
transmit mode through the HCI interface.
In addition, the RDS/RBDS functionality supports the following:
Receive
• Block decoding, error correction and synchronization
• Flywheel synchronization feature, allowing the host to set parameters for acquisition, maintenance, and
loss of sync. (It is possible to set up the BCM4330 such that synch is achieved when a minimum of two
good blocks (error free) are decoded in sequence. The number of good blocks required for sync is
programmable.)
• Storage capability up to 126 blocks of RDS data
• Full or partial block B match detect and interrupt to host
• Audio pause detection with programmable parameters
• Program Identification (PI) code detection and interrupt to host
• Automatic frequency jump
• Block E filtering
Transmit
• Support simple block encoding or RT/PS message to frame encoding (RT/PS mode minimizes host
communication for improved system power saving)
• Programmable scroll rate in PS mode
• 256 bytes of storage for either RT/PS message or simple RDS/RBDS blocks
•
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BROADCOM
BCM4330 Preliminary Data Sheet
April 28, 2011 • 4330-DS304-RI
Page 71
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