MSP3411G Micronas, MSP3411G Datasheet - Page 26

• Manufacturer Part Number: MSP3411G
• Description: (MSP34x1G) Multistandard Sound Processor Family
• Manufacturer: Micronas

MSP 34x1G
3.3.2.1. STANDARD SELECT Register
The TV sound standard of the MSP 34x1G demodula-
tor is determined by the STANDARD SELECT register.
There are two ways to use the STANDARD SELECT
register:
– Setting up the demodulator for a TV sound standard
– Starting the Automatic Standard Detection for ter-
The Standard Codes are listed in Table 3–7.
Selecting a TV sound standard via the STANDARD
SELECT register initializes the demodulator. This
includes: AGC, tuning frequency, band-pass filters,
demodulation mode (FM, AM, or NICAM), carrier
mute, deemphasis, and identification mode.
If a present sound standard is impossible for a specific
MSP version, it switches to the analog mono sound of
this standard. In that case stereo or bilingual process-
ing will not be possible.
For a complete setup of the TV sound processing from
analog IF input to the source selection, the transmis-
sions as shown in Section 3.5. are necessary.
Note: The FM matrix is set automatically if Automatic
Sound Select is active (MODUS[0]=1). In this case, the
FM matrix will be initialized with “Sound A Mono”. Dur-
ing operation, the FM matrix will be automatically
selected according to the actual identification informa-
tion.
For
MSP 34x0D, a Manual/Compatibility mode is avail-
able. A detailed description of this mode can be found
on page 83.
26
by sending the corresponding standard code with a
single I
restrial TV standards. This is the most comfortable
way to set up the demodulator. Within 0.5 s, the
detection and set-up of the actual TV sound stan-
dard is performed. The detected standard can be
read out of the STANDARD RESULT register by the
control processor. This feature is recommended for
the primary set-up of a TV set. Outputs should be
muted during Automatic Standard Detection.
reasons
2
C-Bus transmission.
of
software
compatibility
to
the
3.3.2.2. Refresh of STANDARD SELECT Register
A general refresh of the STANDARD SELECT register
is not allowed.
enables watching the MSP 34x1G “alive” status and
detection of accidental resets (only versions A2 and
later):
– After Power-on, bit[15] of CONTROL will be set; it
– Reading of the CONTROL register and checking
– If bit[15] is “0”, any refresh of the STANDARD
– If bit[15] is “1”, indicating a reset, a refresh of the
must be read once to enable the reset-detection
feature.
the reset indicator bit[15] .
SELECT register is not allowed.
STANDARD SELECT register and all other MSPG
registers is necessary.
However,
PRELIMINARY DATA SHEET
MICRONAS INTERMETALL
the following method