Software specifications
TDA7546
Table 39. rds_corrp register
rds_corrp
reset value
bit name
access
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
00 00 0000
cp9 cp8 cp7 cp6 cp5 correct dat_ok bovf
r
r
r
r
r
r
r
r
Buffer overflow
1: More than 24 blocks have been written into the buffer.
0: No buffer data has been overwritten.
Information if the current RDS data could be used.
1: A correct syndrome was detected and no error correction was
done on a good quality marked RDS bit and the flywheel counter is
greater than 2 (RDS data is OK).
0: The syndrome was wrong, or an error correction was done on a
good quality marked RDS bit, or the flywheel counter is lower than 3
(RDS data is not OK).
It is an information about error correction.
1: An error correction was done.
0: The actual RDS block is detected as error free.
bit 5 of the syndrome register(4).
bit 6 of the syndrome register(4).
bit 7 of the syndrome register(4).
bit 8 of the syndrome register(4).
bit 9 of the syndrome register(4).
(4) (Refer to CENELEC Radio Data System speciÞcation
EN50067, ANNEX B). When bits 0...4 of the syndrome reg-
ister are zero, a possible error burst is detected. With help
of the correction pattern (bits 5...9 of the syndrome register),
the type of error can be measured, in order to classify the
reliability of the correction.
Table 40. rds_bd_h register
rds_bd_h
reset value
bit name
access
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
00 00 000 0
m15 m14 m13 m12 m11 m10 m9 m8
rr rr rrr r
bit 15 of the actual RDS 16 bits information.
bit 14 of the actual RDS 16 bits information.
bit 13 of the actual RDS 16 bits information.
bit 12 of the actual RDS 16 bits information.
bit 11 of the actual RDS 16 bits information.
bit 10 of the actual RDS 16 bits information.
bit 9 of the actual RDS 16 bits information.
bit 8 of the actual RDS 16 bits information.
Table 41. rds_bd_l register
rds_bd_l
reset value
bit name
access
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
00 00 000 0
m7 m6
rr
m5 m4 m3 m2 m1 m0
rr rrr r
bit 7 of the actual RDS 16 bits information.
bit 6 of the actual RDS 16 bits information.
bit 5 of the actual RDS 16 bits information.
bit 4 of the actual RDS 16 bits information.
bit 3 of the actual RDS 16 bits information.
bit 2 of the actual RDS 16 bits information.
bit 1 of the actual RDS 16 bits information.
bit 0 of the actual RDS 16 bits information.
52/68