
PRELIMINARY DATA SHEET
MSP 34x5G
Micronas
89
6.5. Manual/Compatibility Mode:
Description of DSP Write Registers
6.5.1. Additional Channel Matrix Modes
This table shows more modes for the channel matrix
registers.
The sum/difference mode can be used together with
the quasi-peak detector to determine the sound mate-
rial mode. If the difference signal on channel B (right)
is near to zero, and the sum signal on channel A (left)
is high, the incoming audio signal is mono. If there is a
significant level on the difference signal, the incoming
audio is stereo.
6.5.2. Volume Modes of SCART1 Output
6.5.3. FM Fixed Deemphasis
Note:
This register is initialized during STANDARD
SELECTION and is automatically updated when Auto-
matic Sound Select (MODUS[0]=1) is on.
6.5.4. FM Adaptive Deemphasis
Note:
This register is initialized during STANDARD
SELECTION and is automatically updated when Auto-
matic Sound Select (MODUS[0]=1) is on.
6.5.5. NICAM Deemphasis
A J17 Deemphasis is always applied to the NICAM sig-
nal. It is not switchable.
Loudspeaker Matrix
00 08
hex
L
SCART1 Matrix
00 0A
hex
L
I
2
S Matrix
00 0B
hex
L
Quasi-Peak
Detector Matrix
00 0C
hex
L
SUM/DIFF
0100 0000
40
hex
AB_XCHANGE
0101 0000
50
hex
PHASE_CHANGE_B
0110 0000
60
hex
PHASE_CHANGE_A
0111 0000
70
hex
A_ONLY
1000 0000
80
hex
B_ONLY
1001 0000
90
hex
Volume Mode SCART1
00 07
hex
[3:0]
linear
0000
RESET
0
hex
logarithmic
0001
1
hex
Linear Mode
Volume SCART1
00 07
hex
H
OFF
0000 0000
RESET
00
hex
0 dB gain
(digital full scale (FS) to 2
V
RMS
output)
0100 0000
40
hex
+6 dB gain (
6 dBFS to 2
V
RMS
output)
0111 1111
7F
hex
FM Deemphasis
00 0F
hex
H
50
μ
s
0000 0000
RESET
00
hex
75
μ
s
0000 0001
01
hex
J17
0000 0100
04
hex
OFF
0011 1111
3F
hex
FM Adaptive
Deemphasis WP1
00 0F
hex
L
OFF
0000 0000
RESET
00
hex
WP1
0011 1111
3F
hex