TDA7546 datasheet(52/68 Pages) STMICROELECTRONICS

52 / 68 page

Software specifications

TDA7546

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Table 39.

rds_corrp register

Table 40.

rds_bd_h register

Table 41.

rds_bd_l register

(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.

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).

bit name

access

bit 7

bit 0

bit 1

bit 2

bit 3

bit 4

bit 5

bit 6

bovf

dat_ok

cp6

cp9

cp7

cp8

cp5

correct

reset value

rds_corrp

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.

bit name

access

bit 7

bit 0

bit 1

bit 2

bit 3

bit 4

bit 5

bit 6

m12

m15

m13

m14

m11

m10

reset value

rds_bd_h

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.

access

bit 7

bit 0

bit 1

bit 2

bit 3

bit 4

bit 5

bit 6

reset value

bit name

rds_bd_l

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