TDA9875 Philips Semiconductors, TDA9875 Datasheet - Page 78

• Manufacturer Part Number: TDA9875
• Description: Digital TV Sound Processor DTVSP
• Manufacturer: Philips Semiconductors

Philips Semiconductors
10.4.1.2
Table 95 Description of Table 94
10.4.2
10.4.2.1
Table 96 Subaddress 1
1998 Feb 13
Digital TV Sound Processor (DTVSP)
P1IN, P2IN
AMSTAT
7 (MSB)
0 (LSB)
IDDUA
NAME
IDSTE
VDSP
RSSF
BIT
6
5
4
3
2
1
NICAM
Description
Definition
STATUS REGISTER
HIGH/LOW
NAME
HIGH
HIGH
HIGH
S/MB
D/SB
LOW
LOW
LOW
OSB
CFC
C4
C3
C2
C1
this bit is HIGH if an FM stereo signal has been identified
This bit is HIGH if an FM dual-language signal has been identified. When neither
IDSTE nor IDDUA are set, the received signal is assumed to be FM mono.
indicates that digital transmission is a sound source (NICAM)
the transmission is either data or currently undefined format (NICAM)
if this bit is HIGH, it indicates that the auto-muting function has switched from
NICAM to the program of the first sound carrier (i.e. FM mono or AM in NICAM L
systems)
This bit is a copy of the C4 bit in the NICAM status register. It indicates that the FM
(or AM for standard L) sound matches the digital transmission and auto-muting
should be enabled.
auto-muting should be disabled, as analog and digital sound are different
these bits reflect the status of the corresponding general purpose port pins,
see Section 10.3.2
78
identification of NICAM dual mono
NICAM application control bits
identification of NICAM stereo
configuration change
synchronization bit
DESCRIPTION
FUNCTION
Preliminary specification
TDA9875