MSP 3400C
PRELIMINARY DATA SHEET
7. Programming the Audio Processing Part
7.1. Summary of the DSP Control Registers
2
Control registers are 16 bit wide. Transmissions via I C
bus have to take place in 16 bit words. Single data en-
tries are 8 bit. Some of the defined 16 bit words are di-
vided into low and high byte, thus holding two different
control entities. All control registers are readable.
Note: Unused parts of the 16 bit registers must be zero.
Table 7–1: DSP Control Registers
Name
I2C Bus
Address Low
High/ Adjustable Range, Operational Modes
Reset Mode
Volume loudspeaker channel
Volume / Mode loudspeaker channel
Balance loudspeaker channel [L/R]
Balance Mode loudspeaker
0000hex
H
L
[+12 dB ... –114 dB, MUTE]
MUTE
1/8 dB Steps, Reduce Volume / Tone Control
[0..100 / 100 % and vv][–127..0 / 0 dB and vv]
[Linear mode / logarithmic mode]
[+20 dB ... –12 dB]
00hex
100%/100%
0001hex
H
L
linear mode
0 dB
Bass loudspeaker channel
0002hex
0003hex
0004hex
H
H
H
L
Treble loudspeaker channel
Loudness loudspeaker channel
Loudness Filter Characteristic
[+15 dB ... –12 dB]
0 dB
[0 dB ... +17 dB]
0 dB
[NORMAL, SUPER_BASS]
NORMAL
OFF
Spatial effect strength loudspeaker ch. 0005hex
Spatial effect mode/customize
H
L
[–100%...OFF...+100%]
[SBE, SBE+PSE]
SBE+PSE
MUTE
00hex
Volume headphone channel
Volume / Mode headphone channel
Volume SCART channel
Volume / Mode SCART channel
Loudspeaker channel source
Loudspeaker channel matrix
Headphone channel source
Headphone channel matrix
SCART1 channel source
SCART1 channel matrix
I2S channel source
0006hex
0007hex
0008hex
0009hex
000ahex
000bhex
000chex
H
L
[+12 dB ... –114 dB, MUTE]
1/8 dB Steps, Reduce Volume / Tone Control
[00hex ... 7Fhex],[+12 dB ... –114 dB, MUTE]
[Linear mode / logarithmic mode]
[FM, NICAM, SCART, I2S1, I2S2]
[SOUNDA, SOUNDB, STEREO, MONO...]
[FM, NICAM, SCART, I2S1, I2S2]
[SOUNDA, SOUNDB, STEREO, MONO...]
[FM, NICAM, SCART, I2S1, I2S2]
[SOUNDA, SOUNDB, STEREO, MONO...]
[FM, NICAM, SCART, I2S1, I2S2]
[SOUNDA, SOUNDB, STEREO, MONO...]
[FM, NICAM, SCART, I2S1, I2S2]
[SOUNDA, SOUNDB, STEREO, MONO...]
H
L
00hex
linear mode
FM
H
L
SOUNDA
FM
H
L
SOUNDA
FM
H
L
SOUNDA
FM
H
L
I2S channel matrix
SOUNDA
FM
Quasi-peak detector source
Quasi-peak detector matrix
Prescale SCART
H
L
SOUNDA
00hex
000dhex
000ehex
H
H
L
[00hex ... 7Fhex
[00hex ... 7Fhex
]
]
Prescale FM
00hex
FM matrix
[NO_MAT, GSTEREO, KSTEREO]
NO_MAT
MICRONAS INTERMETALL
29
MICRONAS [ MICRONAS ]
