TDA9875AH Philips Semiconductors, TDA9875AH Datasheet - Page 81

• Manufacturer Part Number: TDA9875AH
• Description: Digital TV Sound Processor DTVSP
• Manufacturer: Philips Semiconductors

Philips Semiconductors
10.4.1
Table 90 Subaddress 0
1999 Dec 20
7 (MSB)
0 (LSB)
Digital TV Sound Processor (DTVSP)
BIT
6
5
4
3
2
1
D
EVICE STATUS REGISTER
AMSTAT
IDDUA
NAME
IDSTE
RSSF
VDSP
P2IN
P1IN
POR
VALUE
1
0
1
0
1
0
This bit reflects the status of the corresponding general purpose port of pin P2
(see Section 10.3.2).
This bit reflects the status of the corresponding general purpose port of pin P1
(see Section 10.3.2).
Reserve sound switching flag: 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.
Auto-mute status: 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 the
NICAM L system) or to the ADC (depending on bit AMSEL).
Auto-muting function has not switched.
Indicates that digital transmission is a sound source (NICAM).
The transmission is either data or currently undefined format (NICAM).
This bit is logic 1 if an FM dual-language signal has been identified. When
neither IDSTE nor IDDUA are set, the received signal has to be assumed to be
FM mono.
This bit is logic 1 if an FM stereo signal has been identified.
Power fail bit: the power supply for the digital part of the device, V
temporarily been lower than the specified lower limit. If this is detected an
initialization of the TDA9875A has to be carried out to ensure a reliable
operation.
81
DESCRIPTION
Product specification
TDA9875A
DDD2
, has