ALS300 Datasheet, PDF (19/66 Pages) List of Unclassifed Manufacturers – Media Audio Controller SPEC

Avance Logic Inc.
ALS300
Bit 7..1
Bit 0
reserved
dummy read/write bit AGC enable
MX44
treble left control (Dummy R/W)
Default 80h
Dummy read/write register
Bit 7..4
dummy read/write bit
Bit 3..0
reserved
MX45
treble right control (Dummy R/W)
Default 80h
Dummy read/write register
Bit 7..4
dummy read/write bit
Bit 3..0
reserved
MX46
bass left control (Dummy R/W)
Default 80h
Dummy read/write register
Bit 7..4
dummy read/write bit
Bit 3..0
reserved
MX47
bass right control (Dummy R/W)
Default 80h
Dummy read/write register
Bit 7..4
dummy read/write bit
Bit 3..0
reserved
MX4C
output mixer control 2 (Dummy R/W)
Default 1Fh
Bit 7~5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
1
Reserved
music left enable
music right enable
digital audio D/A left enable
digital audio D/A right enable
mono input enable
mute
enable audio into output mixer
Sound Blaster 16 Configuration Register:
MIXER.80
Sound Blaster interrupt setup
Default 00h
Bit 7..5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
reserved (read as 1)
IRQ11
IRQ10
IRQ7
IRQ5
IRQ9
0 : disable interrupt
1 : enable interrupt
Only 1 bit can be set at any time
Any write to PnP logical device 0 port 70h will set and reset corresponding bit in this register.
Write this register will generate SB-MIXER IRQ except in PnP configuration state.
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