STA321MPL View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STA321MPL Datasheet PDF : 50 Pages
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STA321MP
Registers
7.2.31 Mix internal channel loop-through (0x29)
D7
D6
D5
D4
D3
D2
D1
D0
C8MXLP C7MXLP C6MXLP C5MXLP C4MXLP C3MXLP C2MXLP C1MXLP
0
0
0
0
0
0
0
0
Each internal processing channel can receive two possible sets of inputs at the inputs to the
Mix#1 block. The inputs can come from the outputs of the interpolation block as normally
occurs (CnMXLP = 0) or they can come from the outputs of the Mix#2 block. This enables
the use of additional filtering after the second mix block at the expense of losing this
processing capability on the channel.
Bit RW RST
Name
7:0 RW 0
CnMXLP
7.2.32 EQ bypass (0x2A)
Description
For n = 1 to 8:
0: inputs to channel n MIX#1 engine from interpolation
outputs - normal operation
1: inputs to channel n MIX#1 engine from MIX#2 engine
outputs - loop operation
D7
D6
D5
D4
D3
D2
D1
D0
C8EQBP C7EQBP C6EQBP C5EQBP C4EQCBP C3EQBP C2EQBP C1EQBP
0
0
0
0
0
0
0
0
EQ control can be bypassed on a per-channel basis. If EQ control is bypassed on a given
channel the prescale and all 10 filters (high-pass, biquads, de-emphasis, bass management
cross-over, bass, treble in any combination) are bypassed for that channel.
7.2.33
Bit RW RST
Name
7:0 RW 0
CnEQBP
Description
For n = 1 to 8:
0: perform EQ on channel n - normal operation
1: bypass EQ on channel n
Tone control bypass (0x2B)
D7
D6
D5
D4
D3
D2
D1
D0
C8TCB
0
C7TCB
0
C6TCB
0
C5TCB
0
C4TCB
0
C3TCB
0
C2TCB
0
C1TCB
0
Tone control (bass/treble) can be bypassed on a per-channel basis. If tone control is
bypassed on a given channel the two filters that tone control utilizes are made available as
user programmable biquads #9 and #10.
Doc ID 022647 Rev 1
35/50
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